I have a small 3D printed shop on Etsy i sell RC Parts and a few Wood Shop items (dust collection). I recently re-did my printer room and upgraded everything... but I have an older FDM printer collecting dust.
A Creality CR10 v3.. A large format (300x300x400) FDM (filament) printer has been my go-to for creating incredibly-stupid-things* and has been amazingly reliable.
It's a solid basic printer to get a kid excited about STEM.. $100
Shoot me board mail for pictures and questions.
* It does make useful things, but those are no fun.