But the Timms’ vast collection of roughly 1,800 artifacts, focused on items from the Johnson Smith catalogs from the early 20th century and beyond, is more than juvenile pranks—it includes cheap toys and quirky but practical inventions like flashlights, twirling spaghetti forks, and electric tie presses, as well as guides promising to teach valuable skills like detective work or jiu-jitsu. https://www.collectorsweekly.com/articles/worlds-foremost-experts-on-whoopee-cushions-and-silly-putty-tell-all/