How about a Chassiswork and Cases subsection in Amplifiers? Every DIY amp requires some thought and design work to fabricate a chassis or case and the sky is the limit on what one can do when they are starting from scratch. Placing a flat top metal plate on four wooden sides has become popular as it can look good and is practical for the DIY'er without a professsional sheet metal shop at their disposal. There are of course other options like repurposing a case salvaged from some piece of commercial gear and so on. Seems like an area worth discussion and opportunity to show off participant's ideas and workmanship.
Along the same line maybe another subsection in amplifiers entitled Pictures would be a good idea. I'm not sure how this would dovetail with the system already in place to handle pictures here. Maybe it could act as a announcement and steering mechanism for viewers.
