The frog dye is on Star plastic.
It was done with acetone based fishing lure dye.
I think I only used 3 colors, but was able to blend the blue and chartreuse to make that green.
I had green, but it didn't take very well.
I dip the black in Rit, then apply the acetone stuff with a q-tip and just paint it on.
As you can imagine, the acetone dye takes immediately and really burns into the plastic.
The ace-based dye had some interesting effects on Champ plastic, but didn't work as well as it did on the Star.