Does your favorite band have a certain tradition they do every time out? I saw Southern Culture on the Skids once again yesterday and they never fail to do their fried Chicken stunt. Their final song is always "8 Piece Box". The gimmick is to invite as many lovely ladies onto the stage as possible,have them dance, take a bite of some fried chicken and then fling it into the audience.
As far as 80's acts I can only think of The Ramones with their "Gabba Gabba Hey" sign.