Ever heard of Go? It's simple to learn, fun to play, and has pretty much no skill ceiling. Print yourself a set and have some fun! No supports are required for any parts, and the board will fit on an Ender 3 Pro's print bed (but just barely - you'll need to turn off the skirt for it). After you print the board, simply take a Sharpie and color in all of the lines and circles.
Required Parts:
The author marked this model as their own original creation.