Museum of Forgotten Art Supplies

Speaking of desktop publishing supplies... I found the The Museum of Forgotten Art Supplies at Drawger via BoingBoing. How many of these rulers, plastic templates, gauges, bottles of goo, and pens have you used or still use in your art or design projects? There are a few I don't think should be related to the "forgotten" list just yet. Take your time browsing the gallery and reading the descriptions and comments. It's a delightful stroll down memory lane for some "of a certain age" and educational for everyone. Are there any that you have no clue about even after reading the description?