Around the Sims
Sims 4
Advent Calendar
https://sims4.aroundthesims3.com/
My Oasis Springs World
Sims 4
12 Days of Christmas
https://myoasissimsworldcontentforthesims4.wordpress.com/
https://arelenriel.tumblr.com/
xBelorSims
Sims 4
December gifts
https://xbelorsims.tumblr.com/
Linzlu
Sims 4
Advent Calendar
https://linzlu.tumblr.com/
Silver Hammer Sims
Sims 4
Advent Calendar
https://silverhammersims.tumblr.com/
Tic Tac Toe
Sims 4
Advent Calendar
http://stefizzi.tumblr.com/
CoatiSims
Sims 4
Advent Calendar
https://coatisims.tumblr.com/
Sim Pearls
Sims 4
Advent Calendar
http://simpearls.co.uk/simpearls/index.php?board=131.0
Blooming Rosy
Sims 4
Advent Calendar
https://www.bloomingrosy.co.uk/?utm_campaign=c4d1b1e3-a280-4201-b0ad-f0f77576ff08&utm_source=so
Walls
https://www.bloomingrosy.co.uk/downloads
Sims Dreams
Sims 4
Advent Calendar
https://www.sims3dreams.at/Forum/misc.php?page=Adventkalender
Your Dork Brains
Sims 4
Christmas Calendar
http://www.yourdorkbrains.com/
Blacky’s
Sims 4
Day 19 of Advent Calendar
Hats
http://www.simszoo.de/
Alixdekostube
Sims 4
Walls
https://alixdekostube.tumblr.com/post/181241249687/blush-wall-set-2-10-swatches-please-don’t
Mod the Sims
Sims 4
Bedroom, clothing, fireplaces
http://www.modthesims.info/browse.php?gs=4&f=38&showType=2