Zac oil slick skin concept (no art though, can't draw)

So I see Mr. Zac is lacking skins. I thought to myself, well what COULD they do for him? They do need a better variety of chromas for him admittedly, and he's STILL owed a fancy suit, but here's what I had in mind.

I think it'd be pretty badass to get an oil slick skin. You know what I'm talking about, that flammable rainbowy shit that leaks from under your car because you're afraid of repair bills. It wouldn't change much about Zac's actual build, but he could be on fire when attacked and spewing rainbow blobs everywhere.

Further examples of oil slicks: http://1.bp.blogspot.com/-gCptszVvGQ4/U6lgkmZxJ6I/AAAAAAAADwY/s2AW08Rg_r8/s1600/oil-slick.jpg https://c1.staticflickr.com/1/181/377499363_7bb8d53d6b_b.jpg