Last "good idea" of a season

All the seasons' official final "good idea" are listed below. Each category's experiment items are listed in the order of when they were microwaved, starting with the earliest experiment onward.

Season 1

 * Moist towelette (Unnamed)

Season 2

 * Ketchup bottle (Diane)

Season 3

 * Water balloon (Helga)

Season 4

 * Mac laptop (Lacey)

Season 5

 * Red spray paint (Jasmine)

Season 6

 * Gigantic mercury vapor light bulb (Samantha)

Season 7

 * Green spray paint (Erin)

Season 8

 * Electric fan (St. Margaret II)

Season 9

 * Old Spice body wash (Penelope)

Season 10

 * Propane tank (Shelley)