Using any type of lids (pickle jar, salsa, cheesewhiz, baby food, etc.) trace a circle from a cute Christmas card. Cut the circle out a little bit inside the line you drew. Glue inside the lid. Use glitter glue (yes, we use this for almost every craft!) around the edge of the card and could also be around edge of lid too. Glue a magnet on the back. Or turn into a ornament by glueing a string on.
Could also glue ribbon on outside edge of lid.I think these would look great on the fridge in random sizes. I plan to do random sizes from various Santa cards that we've received this year.