The Witte Museum in San Antonio, TX puts on an event at the end of February called "Build It Day". 10BitWorks gets invited every year; this was our 2020 edition. Smelle's contribution was the digitizing of an existing catapult idea so that it could be laser cut from 5mm thick plywood. John Chadwell did the rest including donating the material, manning the table, and taking the reference photograph. The boy's name? Max.