I used Sharpies on clear/silver flake Whams Fisheeze - ran a red stripe down the side and green on the back with black dots - trying to imitate a trout. It looked great. Just a few weeks later, the black dots were indistinct and had faded to dark blue. The stripe was very "blended" and no longer looked like a stripe. Same deal with the Kalin 1.5 inch clear/hologram flake grubs. I ran a black strip down the back to go with a jighead painted black on top/white on the bottom. Looked very minnow-like until a few weeks later when it looked like a blue grub.

Any idea what Wham/Blam uses to color the backs of their plastics? Some sort of vinyl paint? Plasti-Dip?