Seems to work pretty well. The biggest problems I confronted were due to my inexperience with resin. The resin sticks to the steel with no problem and thicker resin fills small holes to create a potentially stained-glass effect as on the far left (though I used opaque colors here- translucent resin on butterfly wings will be next).
colores epoxy resin. to minimize bubbles i use a thin resin and run it over with a heat gun after it's poured to raise any bubbles that have formed. you just have to keep the heat gun far enough away that it doesn't make waves in the resin. it's not such a problem if you don't embed anything in the resin.
epoxy resin-filled stainless blanks that i finished by sanding with a wolf belt sander (the belt is 1" wide and powered by a flex shaft with a foot pedal). had to keep everything wet so the resin wouldn't melt. blew through the regular belts but i did get good results from them, just not for too long. i used a number of different grits to get a nice smooth finish. next run will be with better belts.
originally i was going to spray them to get a gloss coat but i decided i like the matte finish better.