In a previous post I described how to transform a cereal box into a gift/treat box.
I did a similar thing with nut cans and coffee cans. Cut scrapbook paper to make a band around the can and glue the edges together. You can also cut a circle of paper to glue to the top of the can. There are several recipes for snack mixes, here is a blog post I found with some ideas for snack mix recipes. The cans can also be used to give other gifts such as hot cocoa and other drink mixes