Roly-poly toy
A roly-poly toy (also called a roly-poly doll, round-bottomed doll, tilting doll, tumbler, wobbly man, wobble doll, or Kelly) is a round-bottomed toy, usually egg-shaped, that tends to right itself when pushed at an angle, and does this in seeming contradiction to how it should fall. == Models == Different toy manufacturers and different cultures have produced different-looking roly-poly toys: the okiagari-koboshi (起き上がり小法師, "take a spill, get up, and arise"), Kokeshi doll and some types of Daruma doll of Japan, the nevаlyashka (неваляшка, "untopply") or van'ka-vstan'ka (ванька-встанька, "Ivan-get-up") of Russia, and Playskool's Weebles.