[joonyar]

Put a £40 bet on the outright winner of Euro 2008 & you get a voucher for a top.

http://www.gamebookers.com/cgi-bin/i..._eursh_08&l=en

Open a quidco account & go through it & get £20 back
www.quidco.com/

You, theoritically, could just be paying £20 for a £40 football top or if your team wins ££££££££££££££££££££
+ you dont need to do it before the tourney starts you could wait until June 17th to see how the group games pan out, you get a voucher for subside sports so you could get club shirts or countries not participating.
http://www.subsidesports.com/uk/store/index.jsp