Frankenfurter sings 'Happy Birthday'. This is a very simple item. It is 'tossed' about during the dinner scene when Dr. Sometimes there is a lot of enthusiasm during this scene. These are 'jingled' about when Dr.
Most people simply use thier car keys, some bring bells or other things that make ringing noises.
This takes place when the characters are in the lab, right after the dinner scene. Like the toast, sometimes this too can get wild. These are things people will shout out towards the screen at various times during the movie. Quite often what people will 'call out' will draw wild responses from others in the audience. Because there are so many call lines and because some use otherwise profane language specific call lines won't be included here.