Rootbeer.
or
None. There never was any light bulb.
Notes: Probably the only really good light bulb joke of 1984.
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
From 2nd to 3rd because there's a shortstop in the middle.
or
A newspaper!
or
He took them to a pignic.
or