I used a natural sponge and krylon fusion paint for plastics.
Chose my first color and sponged it on letting the original base color of my fury show through, then just kept layering my additional colors on. Turned out great! Only downside to it is, if I don't have my decoy topper on it it's occasionally hard to find in our pasture grass.
Been on three seasons now and has not faded or rubbed off.