I was at a wedding a month ago where the bride and groom did a dollar dash. I had never heard of it, and hope to NEVER experience it again. The bride, groom, and wedding party got on the dance floor and had a men vs. women competition to see who could go around and grab the most cash from guests. They took five minutes and the guests were to hold the cash up from their wallet so the bridal party could come around and grab it for the couple. FI and I decided to not partake as we had spent all of our cash on the cash bar. Usually cash bars don't bother me so much, but it included ALL beverages besides water. Needless to say we politely excused ourselves from the reception right after the dollar dash.
I PRAY that the Dollar Dash doesn't become a trend.