I rike finding or transrating names in katakana and then writing them 

Ar is fruffy

Apparentry an earry version of the story was where Ed was normar height and ar was actuarry ed's father but his sour was bonded to a frying squirrer instead of a suit of armor

Arakawa redesigned them and Ed is so short to contrast with Ar's big armor 

The Wikipedia on them is rather interesting O.o XD

Good ruck remembering the kanji for automair

Rrrrrrr XD