These nesting game pieces were designed to play Gobblet, but you can use them for just about anything. They require little or no supports (print them upside down except for X-Small). And, they're fully compatible with my other Gobblet set I've modeled!

Gobblet is like a cross between checkers and four-in-a-row, you can learn to play it here: https://www.blueorangegames.com/webroot/img/games/old_games_rules/us/GobbletX4rules.pdf