Every year during the Advent Calendar event, Chicken Smoothie releases special pet litters based off old designs with a new twist (ex. pets based on items).
First seen in 2009, these 'throwback' litters have recreated a multitude of site designs under different themes.
This guide will list each throwback pet alongside its inspiration. Pets are grouped by release year. The release dates of the original designs are listed below each pair.
This guide does not include Grown-Up PPS (GUPPS) pets. For a guide to GUPPS, click here.
For outcome names, see Pet and Litter Names.
For litters from 2009-2013, go here.
Advent Calendar 'Throwback' Designs
2014
| Dog Deer
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| Archive
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by: Lilian Nightshade, Tyr, SoulWings, Sorren Fey, Drizzle, Solloby, Agapetos, Saikiyo, sketchi
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| These deer are based on various dog designs.
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| October 2012
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October 2012
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| April 2012
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April 2013
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| May 2014
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August 2011
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| September 2012
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March 2012
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| January 2012
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CS Birthday 2011
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| March 2011
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August 2013
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| July 2010
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May 2013
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| May 2012
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Christmas 2010
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| November 2009
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July 2009
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| April 2014
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September 2009
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| July 2013
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January 2011
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| June 2013
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January 2014
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| December 2009
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May 2009
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| May 2010
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February 2010
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| January 2009
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June 2013
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| January 2011
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March 2011
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| May 2013
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May 2011
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| February 2009
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June 2013
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| July 2011
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September 2010
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| April 2012
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December 2012
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| January 2009
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November 2011
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| April 2011
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November 2013
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| January 2014
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November 2009
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| March 2011
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February 2012
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| October 2014
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February 2013
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| August 2010
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September 2011
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| March 2009
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March 2011
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| January 2009
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Halloween 2013
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| May 2011
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2015
| Grown-Up Newborns
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| Archive
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by: PitchBlack, Lilian Nightshade, Sorren Fey, sketchi, Solloby, Berkshire, Lacuna
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| These pets are grown-up versions of various newborn pet designs.
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| May 2015
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August 2009
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| February 2015
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August 2012
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| April 2013
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CS Birthday 2010
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| March 2013
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Christmas 2008
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| September 2014
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May 2009
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| March 2013
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January 2009
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| June 2014
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March 2015
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| March 2013
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January 2015
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| June 2010
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March 2012
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| March 2011
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August 2015
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| May 2011
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November 2014
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| May 2011
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May 2012
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| April 2009
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October 2013
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| June 2009
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April 2014
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| June 2011
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July 2015
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| November 2014
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June 2013
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| February 2014
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January 2013
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| July 2014
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Christmas 2008
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| May 2014
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CS Birthday 2015
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| Halloween 2014
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August 2008
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| July 2008
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July 2014
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2017
| Long Lost Siblings
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| Archive
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by: Tess, Sorren Fey, Solloby, EmberWolf, raey, Simon, Desmond, Swiftalu, Saikiyo
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| These pets have been designed to look like additional outcomes of past litters.
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| CS Birthday 2011
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February 2013
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| Christmas 2011
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May 2015
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| February 2010
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July 2008
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| September 2012
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January 2009
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| September 2012
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November 2008
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| March 2010
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September 2008
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| October 2011
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June 2009
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| August 2010
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April 2009
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| March 2013
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January 2009
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| March 2009
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