ZillaJoe  or  SBLT or anyone making custom aluminum parts. 

Take a look at these two sites to see what I am referring too.  Something like this for our zillas could be nice.  Take a look at this site to get an idea of what I am talking about for rear brake bars.  This site is for a yamaha v max one off aluminum parts but you get the idea.

If you look through his site they sell some cool looking rear shock mounts.  The look of some of these shock mounts made into some axle or wheel hub nut caps would be NICE on my zilla.

Cycle One-off Vmax parts    http://www.cycleoneoff.com/v-maxbrakebars.html
Python motorsports---idea or look for wheel nut caps   
http://www.pythonmotorsports.com/vmax/vmax_products/DR_oil%20cap%20holes.htm.

If anyone of you feel inclined to ever do something like this let me know.

Modify--added----Boy I love this site and the new section to post stuff for sale.  I see that SB designs has just added the type of brake bars I was thinking of..  SBLT  I see you have the front wheel nut cover but something with a little more pizaz like the above v max sites offer as a rear shock mount would be more what I have in mind.