TIL that Mattel made a Barbie in 1975 whose boobs grew when you rotated her arm. : r/todayilearned
TIL in 1975, Mattel Toys sold a "sister doll" for Barbie called "Growing Up Skipper." When her arm was twisted, larger breasts would grow out of Skipper's chest. : r/todayilearned
Funny Patent for Childbirth by Centrifugal Force Demonstrated using Barbie Doll | Wes walks through the funny patent about Birth By Centrifugal Force by building a Barbie sized model. He uses a