Architecture stencils
AIGA Symbol Signs
Used at airports and transportation hubs, the AIGA symbol signs are a joint effort between AIGA and the U.S. Department of Transportation. Especially nifty for making maps of floor layouts for public display.
Bathroom Objects
There are so many ways to describe this stencil using, how shall we say, "Bathroom Humor"; however in the interest of being truthful, suffice it to say that this stencil covers all of your plumbing needs. Well, in the bathroom at least.