As I was going through some of my supplies, I came across some of the business magnets I had left over. I suddenly realized these would be a great little craft idea to do for kids to do for party favors. What you need is a pack of self adhesive business card sized magnets(see pic below)\
I have always had luck finding them at Kmart and Wal-Mart in the office supply sections. Under that top white layer that you peel off is adhesive. Gather together paper, buttons, chipboard pieces, and tape. Stick on the paper and let the creativity begin. The paper will stick very well, you just need the tape for attaching your accessories!