You show me a......
 

There are a million of these. What do you have to add?

You show me a piano falling down a mineshaft and I'll show you a flat minor.

I have none to add, but that first one was pretty good (spoken by a musician).

You show me a man standing on a toilet and I'll show you a man high on pot.

Show me a man with his head held high, and I'll show you a guy having trouble with bifocals.
Not very funny, but it's all I could find. :(
Liked the first two though!