There are options for extra legs, a second tail, and (however quite expensive) an extra head. By the way, you can get AppleCare for your iPony too. And, obviously, if you teach it things that Apple didn't want it to know, AppleCare is revoked (but you can unteach it so they don't notice) and the next firmware update for your iPony will kill it right away... A few years later, Apple will be sued and forced to release iPony firmware update release code, to see if that was on purpose.