lunch-digestive-system_medCheck out some new gutsy goodies just for you -- the Digestive System Lunchbox! There's only two one of these left, so grab it while you can.We've also combined some select guts and glands to create specialty sticker packs -- the Digestive System Sticker Set (yummy!) and Reproductive System Sticker Set (sexxxy!). Just in case you've forgotten how the digestive system works or how the reproductive system works (really, now, who could forget that?), these stickers will help you along. Sex organs are not included, you have to supply those yourself.