I don't use a rewards system, but I have a "treasure box" for birthdays. I took a nice box with a lids, covered it with wrapping paper, and wah-la! I had checked around for a wicker chest or something, but couldn't find anything inexpensive (I didn't get to many yard sales last year!). The box worked well, and if I get tired of the look, I can change the paper! It also stacks up well when I need to store it!