I love the little playing card books. Could totally do this even with a smaller deck. 52 Things I Love About You Book (made with playing cards) - DIY Valentines Day Projects
Use these printable Advent Calendar Christmas Countdown Tags to create your own advent calendar or to label packages in your Christmas book countdown.
DIY Adventszkalender - Die passenden Zahlen als Freebie
Advent calender with cups. Great way to upcycle some cups. Maybe fill with drink mixes (hot chocolate and cider)