Fruit Fly Trap with Oscillating Exterminating Orb

Fruit flies! A bit of fruit goes soft and suddenly you have a flurry of the annoying things around. They seem to show up summer thru' autumn when more fresh fruit and veg is suddenly in your house. There are many traps you can find on Thingiverse. Invariably they trap the little critters, but they collect and survive inside the trap. I wanted an easy way to finish them off.

My idea was - how about a trap that designs extermination in from the start? This little container has an opening to