I don't know for sure if these can be considered art, but I gotta admit I'm pretty proud of 'em. The filter adapters are only 3" diameter x 1" thick.
First 3 pics are a universal mount, 4th pic is purpose built for rubber-mount FLH/FXR's, and the bottom pic is what we're going to call a "builder's kit" (shown unpolished). The idea with the builder's kit is that a guy can bend, twist, drill, weld, or whatever else he needs to do with the bracket to mount the filter however and wherever he wants it.
All parts shown are my own designs, and patent pending (with the exception of the reusable oil filter used in the 4th pic).