Sparky Flynt is a Boss in Sir Hammerlock vs. The Son of Crawmerax
Sparky Flynt can be farmed. He will appear in Sparky Flynt's Clubhouse each time a save game is loaded.
He will only run around some. He has a shotgun but it doesn't seem to do a lot of damage. He does have well above average health though. Expect the fight to take a short while but not too long.
The only unique thing he can do is throw out a Craw Thumper. This will call in a small worm to aid him in his battle. It is very weak and doesn't take much to kill.