I honestly don't know. You should have seen the look of disgust on my face as I saw those pictures, LOL.
Hmm, maybe the sponge? It looks the cleanest...
The keyboard. It might actually be pretty sterile with all those layers of hot, nicotine imbued ashes falling on it. At least, that's how I'd console myself.
Can I lick the keyboard AFTER I've taken off the contaminated plastic covering?
Next would be the sponge.
What am I getting out of all of this? Besides some unpronounceable disease of the tongue? It'd had better be something good...and clean...or dirty in an entertaining way.