My parents just moved into a new home and to help christen their new fridge, I used these:To make these:
the pic isn't the greatest, but hopefully you get the idea!Now when my parents walk past their refrigerator all 12 of their grandbabies will be smiling at them!
My sister made some like this with fabric behind them and I've used just cute paper before. In my classroom I have a 1, 2, and 3! They're super easy and quick to make!