An impasta
or
He presses the paws button.
or
When it came time to pay, the skunk didn't have a scent, the deer didn't have a buck so they put the meal on the duck's bill.
or
None. They just let Marketing explain that "Dead Bulb" is a feature.
or
Silly, WASPs don't screw in a light bulb, they screw in a hot tub.
or
Only one, but they get three tech. reports out of it.
or