Did you get to practice your Friend-Foe/Challenge-Response exercise? That would be a great way to get rid of it since they cannot speak.
I have a "Kandle Heeter" on the way to my house. I may attempt to see if it works with these "un-candles" The wick burned for 6 hours, and I still have oil left in the bowl. I only put about a half cup of oil in on top of the water. So it consumes fuel really slowly.