They both blow and make different noises when you finger them.
A fish tank !
Some days the wind doesn't blow.
You start as a billionaire
A woman on a tumble dryer! (Bet you thought I was gonna say 'a towel', didn't you, silly redditors )
Which hole they stick their finger in when no-one's looking.
She puts two fingers in her mouth and then shouts "Max!".
You can tune a chainsaw.
Because the trombone is a sax offender.