Quoted from PtownPin:

I think they make really creative stuff...I was on their pre buy list and got access to purchase first. The reason I didn't transact was the lack of information. I didn't want to pony up $ site unseen. Not sure I understand this strategy although they apparently sold 25 $2K+ toppers in less than 24 hours so what do I know.

Quoted from Thermionic:

More money than sense indeed! A fog machine in close proximity to a pin? Does anyone ever think about the real-world implications of all this extraneous "clever" shit?!?
In fairly short order, the fog (consisting of glycols and/or glycerin + water) will condense on every glass surface in the room and leave a film on your pinballs and video games - it smudges like hell and is a bit of a pain to clean, and you will not be able to simply ignore it. (We learned this lesson the hard way one year when we decked out the game room in a haunted house motif for a party - NEVER AGAIN!)
Granted, from the pic it looks like the topper emits a lot less than a full-blown fog generator, but it will still almost certainly make a mess on nearby glass surfaces (and I don't even want to contemplate the potential misery of cleaning up when it inevitably starts to leak sticky fog juice all over the game).