First off....that title is great.

Second, I'd try the lens first before working towards "perfection". I found that my really nice, laser cut pinhole lens just produces boring images because they are consistent, sharp, and vignette little (that's due to focal length though). My favorite pinhole looks like a triangle under high magnification but produces great, interesting images. (Mine is made out of a beer can too)

Shoot, and if it's not what you want, experiment some more!