"Hard-luck Inventor" joke

My friend, Harvey, is what you'd call a hard-luck inventor. Here is a partial listing of his inventions:
6-Up (a soft drink).
Preparation G (rectal ointment).
5 shooter (five shot revolver).
Model S Ford (similar to the Model T Ford).
Nice Krispies (a breakfast cereal that went snip, crickle, pip when milk was poured over it).
The Wolksvagen (a small car known as the "WV").
Dogsup (a condiment for hamburgers and hot-dogs).
Goputer (sophisticated electronic device).
Whitejack (card game for gamblers).
Anklewatch (timepiece).
Star Bangled Spanner (a song intended to be our National Anthem).