About this 3D model
This design is based on a mini Lego Duplo police helicopter. And it accepts the bigger Duplo figure. Easy to print 3 piece model.I designed it in Fusion 360 and used some bricks for size reference from here https://www.thingiverse.com/thing:615256The .step file is included if you like to customize. Affiliate: Gearbest - 3D Stuff Screwdriver Wallet Kit Repair Tools