Yeah i broke her in easily to the kink
First i boned her on a smaller gym ball and a big red heart on valentines. Later on a 6" tall inflatable birthday cake on a birthday party for her where she finally understood what i liked. This summer we have played on a big flamingo, the shosu and the birthday cake again.
I can recommend the 95cm gym ball from Live Infinitely. It's big, bouncy and doesn't need to be deflated in case somebody comes for a visit =D
The shosu also has a quick deflate valve that makes it easy to store when you are done.