I cut mine out with the backing still attached, glued two together, used stickers to decorate and used laminating paper to seal them. I hole punched one at the bottom and one at the top and used lime green ribbon to make one dangle from the other. Then I used a pin with a sticky back and stuck in on the back of the top mickey head. I pinned it on my shirt this past weekend and had two people notice me. Not bad for my first weekend.
When I get home I can post a picture if you'd like.
Others suggested using them as luggage tags, which is my plan for our trip in June. Walmart apparently sells self laminating luggage tags that have worked well before.