Well, I was inspired after being on a thread in here for a battery hold down assembly. If you have done the optima upgrade, then your factory hold down is too short, so if you have to buy a new one, might as well get a cool one. There were some cool ones available. I then searched Ebay and found one that will custom cut the top plate for free. $50 including S&H!!! This thing is 1/8" steel, very heavy duty. It came out awesome, except that I should have had him cut the VX oriented the other way, I didn't think about that. But its still looks cool, and the yellow paint I got is very close to the Proton yellow.
Here are some pics: