Using a large piece of paper divide it into sections write each guests name in a section at random over the piece of paper. The more random the better. Now in the remaining boxes write in a blindfold activity (typically a game that can be played by one person, without any interacting with other players. Place the piece of paper on a wall. Now blindfold one player, spin them around and point them towards the gameboard. Now they have to place a pin somewhere on the board. If they get a players name, they swap places. If they get a game they have to play that game, until complete. Then they are returned to the board and have to place the pin again. They remain blindfolded until they pin a name to swap with.
Source: From the original site.