You can only use them when you really really need them.
Kitty looks so handsome in 3D!
They don't make a racket or a stink and they're even helpful in the dark! Requires only electricity feedings.
Hopefully not subject to foreclosure from tiny adorabloe banks.
(Commentary and title by our lovely submitter, jerseychick)
Any Miyazaki fan will recognize this awesome sculpture. Man do I wish I had a walking house.