Here's a really bad joke that you can do with a tape player.
Basically ask your friend:
"Wanna do a knock knock joke?"
So your friend says "okay" and then you go:
"Knock knock!"
Who's there?
"Doctor"
Doctor Who?
At this point you whip out the tape player, push play, and the Doctor Who theme song starts playing. Total hilarity or a really stupid joke? You decide.
Another stupid joke goes like this:
You ask your friend "Wanna hear a knock knock joke?"