I have only been caching a few months now-- but we cache with the kids-- and they are really disappointed to find a cache full of broken items-- so we have come up with The Bag of Swag-- we shop at walmart and the dollar store-- getting things like balls, rocks, jacks, rings, pencils, keychains-- party supplies are the best-- then use sandwich bags-- putting 5-10 small children's items in to stock the cache containers for kids to come in the future!!