What's The Code

My kids can't wait for me to get the presents under the tree. They can't wait to figure out the code. Each year, to keep the kids from messing with the gifts too much, in stead of putting there names on the gifts I use a code so that they aren't sure who gets which present. They have so much fun with this. As the kids get older we have to get more tricky. In years past we have used these codes....
3 different colored wrapping papers
different ribbons
numbers (one child had 1, 11, 31, 13, etc. another 2, 24, 42, etc. and 5, 56, 65, etc.)
numbers divisible by other numbers
This year we are using animals. I can't let you know the code in case my kids read the blog but I will after Christmas. It really gets there brains thinking and keeps them from messing with the presents because they aren't sure if it is there gift or not.