Amazingly awkward to find out how to do it!
Really, I would have thought they'd have a streamlined enough process, judging by the lack of editing of alot of the entries!
Are you thinking big for future group buys?
Their commission would make the bank and paypal seem like charities...
Doesn't sound like a bad idea, the only problem would be recruiting a venue. And I don't think grabone would be happy with only €1 from each sale!