My fiancé and I are planning a surprise free drink/shot song (shots by lmfao) during the reception and when it's played all of our guests will get either a shot or drink of their choice on us. We're already having wine and beer included with the reception plus a cash bar for those who prefer something other than wine or beer for the rest of the night. My question is what is a good way to make sure only one drink per person is served during that song? I was thinking drink tickets of some sort but I want it to be a surprise to the guests as well. The dj would of course announce what the tickets are for once the song comes on and get everyone pumped up lol