Where can I buy modeling chocolate? I've never seen it in a store or anywhere online.
You can buy modeling chocolate online at www. fondantsource.com . I haven't bought it from there yet, so I don't know brands or prices, but they are good to work with.
Why don't you make your own? Its only two ingredients - chocolate and corn syrup
I don't know if you've considered making it, but its SUPER easy (even I can do it ) just melt down candy melts in the microwave (I've been using wilton) 24oz white or colored, or 18oz dark chocolate then mix with 2/3 C. of Karo syrup. Spread it on a cookie sheet covered in wax paper and pop it in the fridge overnight (I've cheated and used some after a few hours and it was fine) and you're all set! Seriously, the whole thing takes maybe 10 minutes. HTH.
Or, you can go super high-end and make it with really good chocolate. I make it with Valrhona dark chocolate and corn syrup -- it tastes the way Tootsie Rolls would taste in heaven.
Is that a common recipe? 18 oz. dark chocolate to 2/3 cup corn syrup? And do you just mix it and let it sit? Can it be rolled to cover a cake?
I personally have never covered a cake in it, but I definitely remember someone here on CC saying she did... It was actually the same person I got that recipe from. Can't for the life of me remember her name though The florida gator cake in my pics was done by rolling the modeling chocolate out and cutting the pieces out like a puzzle sort of. It seems to hold up pretty well even when its rolled thin (especially if you pop in the fridge for a bit after rolling it).