Once again I have come across such an extraordinary beast, with such an unusual description, that nothing I could write would ever do it justice! On occasions such as this, all I can do is quote the shop's description and sit back and let you enjoy it for yourself! This creature was found at Plaider Pillar who states, and I quote:
"So anyway, this guy is a yoga ball monster. What does that mean? It means he's inflatable by means of a yoga ball inserted into his face, of course. You can sit on him, unless your butt is made of knives. But even then, you can sit on him . . . once.
All you have to do is put the yoga ball in the monster through his face hole, face hole, inflate it with a pump, and plug the ball, ball. Then, tuck the face flap, face flap in around the edges. You should inflate the ball so that it completely fills the monster, monster, and the pressure will keep the face flap, face flap in place while you bounce on him, bounce on him.
You might be like, "Why is these instructions so fun to read, read?" To find out the answer, you'll have to purchase this righteous beast."