Dad keeps it interesting

It looks like a lot of them could be reused Halloween costumes

He probably either made some of them or got them from thrift shops.

Maybe he's a costume shop owner

Or it really didn't matter... so he lost a leg, big deal

We all did - as @dan_and_phil_fan already said: so what?

Well, actually I think it makes him extra cool because he incorporates that to the costume like in the pirate one.

And awesome sense of humor even after losing a leg.