Mr. suicide Bathtub Plug
This is guaranteed to make you laugh in the bath, I like the blue guy.
I love this movie way more than anyone should but it's hilarious, and the woman with the dog body sill gives me nightmares.
Got this at a library book sale for 50 cents, and it's hilarious. Covers everything from fish sticks to lava lamps (although fish sticks...that's debatable.)