Hi!
For the last 2-3 months I've been creating my version of a radio controlled version of the famous #3DBenchy.
It's a simple design and quite simple to print but makes for a fun pool-boat :)
The hardware needed costs less than 100$ for a complete boat.
I've already posted it on Thingiverse if anyone wants to make one :)
https://www.thingiverse.com/thing:2821525
https://www.youtube.com/watch?v=JOiXEFOYh3E