Anyway, I always try to remember about the "3 R's rule" - Reduce, Recycle, Reuse! Following those steps I find Recycled Carton Wallet project, not only for those with a big amount of change in their pockets, but also for eco friendly handimaniacs! "Spoonful" guides you through the easy tutorial and provides very useful template to print.
I think I'll make this project with our son, and I am sure it would do for the ecology lessons at school. Also, I recommend you to be creative while finishing it (use any embellishments that you like). If you can think of any other use of this wallet than for coins or trading cards, let us know on our fan page.
Clik the link for step by step instruction and printable template of Recycled Carton Wallet.