It's two letters already. Let's not be lazy, mmkay?
Famous people named Ty:
Actors Ty Burrell, Ty Panitz, Ty Hodges, and Ty Schuette; carpenter and TV personality Ty Pennington; baseball hall of famer Ty Cobb; rodeo cowboy Ty Murray; singer Ty Herndon; rapper Ty Dolla Sign (real name: Tyrone Griffin, Jr).
Ty, Inc. is the largest manufacturer of plush toys in the world, responsible for Beanie Babies, and founded by Ty Warner in 1986.