KLACKERS! Put two 2-inch orbs at the end of strings and swing away! Just try not to smack yourself in the face/head/hand/eye/wrist or those of your friends standing too closely. I was black and blue after playing with these things!
A Merry go round like at my elementary school in Vienna, VA. One of my favorite playground equipment rides and I always wore it like a badge of honor when I could push it fast enough to make others get off due to nausea! Heh! Heh!