Because sometimes the ayes (eyes) have it and sometimes the no's (nose).
When your nose touches the ceiling!
Fingerprints.
I always loved this one: (works better said out loud of course) What do you call a fish with no eyes... A FSHHH
You Blink Your Eyes.
AYE MATEY
Aye, Chi-Chi, Why?
A cow with a cold.
A sneezing ticket holder.
Of course the $ bill!
One is a Cunning array of Stunts...