How did Dr Frankenstein pay the men who built his monster? On a piece rate.
Why did Frankenstein squeeze his girlfriend to death? He had a crush on her.
Did you hear about the monster who went to a holiday camp? He won the ugly mug and knobbly knees competition and he wasn’t even entered.
What did one of Frankenstein’s ears say to the other? I didn’t know we lived on the same block.