Went a little overboard with my kid and our 3D printer this year for his Pirate Themed Raingutter Regatta event.

Here are the parts I designed.

The wheel hub is for this wheel: https://www.thingiverse.com/thing:3269070

Here is a collection of all the parts used: https://www.thingiverse.com/jaisor/collections/regatta

Creality

Ender 3 Pro

Doesn't Matter

No

.16

20%

Some parts might need a raft if bed adhesion is an issue. Most print without support in the uploaded orientation. The Crows Nest might need support depending on how well bridging is calibrated.