A little notion from my European travels...Europe is struck by soccer fever. Due to the FIFA World Cup 2010 Soccer tournament being played in South Africa,  everything here also, is decorated soccer style. Houses, cars, retail outlets, kids with face paints, restaurants and even florist shops... I thought that the soccer would never enter the 'flower world'  - but no... Have a look at a photo of a soccer style decoration in a florist shop. The arrangements themselves are simple and not state of the art floral design but I think it's the thought that counts.  It's an eye catcher in any case. 
 As for wedding designs, I have not yet seen a wedding designed in world cup soccer style yet  :-)  ... but who knows...  how about a wedding theme called "FIFA World Cup"   ....;-)
 I am sure for those who prefer Australian Rules Footy, Rugby or Cricket all can be arranged... :-)