Reply by cupadeecakes

Hmmm… my first thought is making your own marshmallow for your RKT. If you’ve never made it, it is fairly easy and tastes great. You would just need to find a vegan substitute for the gelatin. I know there are vegan substitutions for gelatin like agar-agar, but you would need to play with the recipe to get the right consistency. As for the margarine/butter in the RKT, just leave it out. I always leave it out when I’m making RKT for sculpting – they don’t taste AS good, but they hold up better to carving!

-- Jenniffer White, Cup a Dee Cakes