A few years ago I had a birthday party. Expecting 20 guests, I made 25 of these, all different, and threw them in a big bowl. Guests got to choose one to take home, and there were enough extra that no one was "stuck" with the last one. Making all 25 took me under 2 hours, and since I used scrap fabric I already had and tissue packs I bought at Dollar Tree, 8 packs for $1, the total cost of these party favors was around $3. Can't beat that!
Here are the instructions: