AI have only ever worked with rkt's once in the past and didn't even think to crush them first! My question is how do you put fondant over the molded treats and have the finish look smooth? Thanks!

When I asked this very same question a couple of years ago this is the advice I was given .  Before covering the RKT with fondant, paint the piece with melted white chocolate.  Makes for a smoother surface.  Worked for me at the time. 

I would be interested to see what others do these days :)

use a little thicker fondant...  I do it all the time and as long as you crush the hell lout of your rkt first it should be smooth...  also if you're modeling it like faces ( I just posted a cake of figures I did with rkt) think about building all your structures first like bones on top of the rkt and then cover it in one sheet...  my figures are a simple ball that I add the eyes, cheeks, brows, noses and lips to then skin it with a single sheet...  it's how we're made after all///  works for us! L:OL

AThank you so much guys!!

I don't crush them. I paint them with a thick coat of white chocolate like JWinslow. Once dry I file away any raised areas with a fine cheese grater or micro plane. Then cover with a thicker piece of fondant.

AThese tips are fantastic. Thanks so much again everyone. :)

I crush them after they're made and do my best to get a very smooth surface to work on.  If necessary, I'll add a layer of melted chocolate and smooth that with heat or a peeler.  Whenever possible, I cover the item with a thin layer of modeling chocolate, smooth that really well, let it set up nicely, and then add another layer of modeling chocolate.