ÜberTropolis 101 is a great way to introduce kids to ÜberTropolis building. This basic set comes with 101 Überstix pieces that allow children to build bridges, towers and the Mobius strip. In addition to basic Überstix I-sticks, the set comes with quarks, which allow kids to build towers and other structures taller than they are. Sturdy components result in structures that can hold a child’s weight. ÜberTropolis 101 can be used with other building systems and recyclables. “In designing everything to be accessible, it’s not just about the price point but also being able to add onto it. You can buy a few thousand Popsicle sticks for a few bucks or you can get some McDonald’s straws ― those are free,” CEO Dane Scarborough of Überstix explained.