Dollar Dance

i have heard of this, but have to agree with amanda. sounds somewhat trashy. you invite guests to your wedding because you want them to be a part of the special day. their thanks is accepting your invitation and bringing a gift. personally i think guests will feel obligated to pay a dollar and dance with the bride/groom even if they don't want to. donating the money to a charity is an option, but i think if you want to take that route one should substitute favors for a donation ($$$ out of your pocket for a worthy cause). never ask the guests to contribute more than they already have.
just my 2 cents!

Yes, I've been to a few weddings (out of state) that have had dollar dances. It was traditionally done as a sort of honeymoon fund-raiser where guests would pay a dollar to dance with the bride or groom. It's probably turned into a 'traditional' thing now...it's cute.