I have an electric fly swatter that I will donate to this project. It is essentially a handheld bug zapper. Rubberband the switch down and drop it on top of the hole in the ground. Should be good for some amusement.
If you want to get Frankenstein on them, I have here a neon-light transformer (9,000 volts!) It would be very simple to fabricate an industrial strength bug zapper! Um....... Just in case burning them to death doesn't seem satisfying and you want to turn them into plasma........
Boy, I got lit up today. A new nest of yellow jackets didn't like me mowing over their house, I guess. That nest wasn't there last week...or if it was, they were just particularly ****** off today. But hopefully they all went down in an inferno just now. Heh!
But damn, I hurt.
Good job!
I'm going to keep hitting this nest once or twice a day until it falls apart, they exhaust themselves repairing it, or they move/die out.
Invite the neighbor kids over and tell them it's a piñata.