Squeezable Mimi balls

During my recent travel to Japan I came across this interesting stress reliever. You really should click on the image and view it at the larger size so you can note other variations of the mimi ball (keychain, wristpad, etc.) and have a good look at the text on the display box. They appear to be selling rather well. According to the signage it's a great toy for ages 5+....ooooh baby!