I cant see a problem with petrol/gasoline, wife actually likes the
smell of it which is worrying, I wonder if she had a past secret life
I dont know, in the 80's over here (uk) a craze was 'petrol sniffing'
for its intoxicating effect, dont know where any of those ppl are
now............
Also used was common forms of solvent glues (yoohoo/bostic) and
permanent marker pens
As for cleaning a bad transfer off the board, I use one of those nylon
pan scrubbers and water.
http://images.amazon.com/images/P/B0006M3B4Y.01-A3CDPEGSIQM61V._SCMZZZZZZZ_.jpg