When you see them, post them. Just a few examples:

Trash Hauling Business:
"Satisfaction guaranteed or double your trash back."

Concrete Company:
"We dry harder."

Window Cleaners:
"Your pane is our pleasure."

Vacuum Cleaner Sales:
"Our business sucks."

Funeral Home:
"Drive carefully, we will wait."

Pastry Shoppe:
"Get your buns in here."

commented: LOL :) +3

On a septic tank service truck:
"We're number one in the number two business"

ACME Cemetery Marker Ltd.:
"People are dying to get our products."

Massage Parlor:
"It's great to be kneaded."