User blog comment:Mr.123/Crazy effects needed/@comment-28768732-20160704010247/@comment-5782071-20160704012555

"The whoopee cushion was invented in the 1920s by the JEM Rubber Co. of Toronto, Canada, by employees who were experimenting with scrap sheets of rubber."

Pretty sure chamberpots might not have been around during Klaus' time in the 1990s.

Babel Stones are already canon.