I am a big charity person so I think the Oxfam idea or having a wishing well set up for a charity is a great idea! I think I'll p*ss off a lot of people at my wedding - I've already told DP the catering will be strictly vegetarian!
Our wedding was vegetarian too! Let me know if you need any other ideas...

I'm sorry for suggesting that asking for money is shallow. It's not, really. I actually think it's better than to end up with 5 fluoro orange tea towels and a hideous hurricane lamp (which we did, even after asking for no gifts!) That comment was misdirected anger at us getting less than our friends who asked for money for themselves.
And get this - one person, as we were leaving, hugged me and said "Oh, and that money? It's for your honeymoon, not for your sponsored child"
Can you believe it?!?!