Trust me, I have thought of that (of course!)
I am playing the odds. Last time I did a prize roll-up most of the donations were coming in from North America. A couple from the UK and another 1 or 2 from Europe. So I'm playing the odds (as always)
Great minds do think alike. Maybe my sub-conscious remembers your awesome MR3 donation and I inadvertently stole your idea. If so, sorry...not sorry :)