Anyone used Atlas "porta-wall" inserts? Basically white inserts/rings to turn blackwall tires into white wall:<p> <IMG SRC="http://photos-304.ll.facebook.com/photos-ll-sf2p/v119/173/86/835155304/n835155304_994359_566.jpg" BORDER="0"> <p>Hard to tell in that pic, but those are them. ANyone care to chime in with how they look in person? Where to find them? Do they come in 16"? How do they attach?