My brother (the "engineer") found these do-it-yourself straws for the boys. They offer lots of creative fun. You can build all kinds of crazy straw structures. You can build the straw to drink out of 3 or more glasses. (We experimented with drinking milk, orange juice and water at once .. yes, it is good?!). And, you can build a straw for two people to drink together at once. So many ways to have fun with something so simple as a straw!