I thought that the "Not a project thread" is specifically for linking pictures (a way to get around the "click to enlarge" issue of posting in the thread) -- never occured to me to read it. Maybe I will.
As for the a spot to post one picture, provide a brief description and a link to a completed project, there is the examples page in the wiki.
Something like ...
http://wiki.arcadecontrols.com/wiki/AquaCadeNot as visible as a sticky, but something that needs new examples.
In fact, I would suggest that, if we have a sticky, then I might suggest that the requirement be to link to an example page in the wiki. I would still post all of the info in the thread, but requiring a link to that person's example page in the wiki builds up the wiki and will drive people looking for ideas to the example pages.