This model of a Poké Ball is easy to print, feels solid, and makes a great cosplay prop. It's easy to assemble and is fun to toss around.
When printing, I used a 0.16mm layer height, 15% infill (gyroid), and 2 walls. Supports are not required, but they may help make the front “hole” cleaner.
To assemble, use the second photo as a guide. Use glue to hold the ball together. Remember that the pegs are only used for alignment: they're not structural.