Frozen Goodies - An advent calendar to get the chance to win daily prizes
Advent Calendar - A fun and interactive calendar
CSS Christmas Calendar - CSS Christmas Calendar 🎄 is an experiment to demonstrate that almost any design concept is achievable with only HTML + CSS.No Javascript, no SVGs, no bitmap images.All code is linked and available, so you can dig deeper.
24 Ways - An advent calendar for web geeks
Llama Sounds Advent Calendar - Fake llamasounds for each day until Christmas
Photo Calendar Creator - Photo Calendar Creator is a convenient program for making calendars for any year or month.