Because we all need a single tentacle arm for that problematical theme party don't we!
The sales pitch.......
"While we've been using our primitive, apelike arms like a bunch of jerks, the squids of the world have been clutching their prey with their superior tentacles and laughing at us. Until now! For the first time, you can have tentacles of your very own. Equipped with suction cups and plenty of creepy greenness."
I'll take 10!