A lot of people say to cover the RKT with BC or royal icing first....I didn't do that with one of my M & M men in my Avatar...it didn't make a difference BUT I did roll that piece of fondant a little thicker then the one for the M & M that had BC 
Hope this helps a little anyway...
A more experienced fondatier (new word 
) will come along to answer how you would cover the hand and get it nice looking
The only thing I can suggest is to make really thick fondant, or double layers otherwise it comes out REALLY bumpy looking.
I have read on here that someone dips their RKT in melted chocolate before covering in fondant. I just made birds last night and put the fondant directly on and it was fine. You just have to smooth it out. It was rolled thick enough that you could not see the bumps from the RK.
I am by no means an expert, but I did cover some RKT with fondant this weekend. A lot of cc'ers use buttercream to cover the RKT first to make it smoother, but my pieces were kind of small to handle so I didn't want to do that. I tried just covering it in fondant (kind of thin) and it was extremely bumpy. So I rolled my fondant thicker and mashed my RKT's very tightly (a tip from a fellow cc'er) and it covered without a bump showing. I was very pleased with the results. Good luck with your hand. Be sure to post a picture for us.
I usually try to put some BC on it to cover the worst of the lumps and then the fondant goes on fine... the bear head and the stork head in my stork/bear cake are made of RK treats and the fondant went on well. I refrigerate the RK treats, then ice them the best I can and refrigerate again, then cover in fondant.
When I did the plane in my photos I needed it to be really smooth and when I tried just fondant that wasn't happening. I ended up coating it with a layer of royal icing and sanding it smooth the next morning. Worked great! Wish I could remember the CCer who suggested it, they really saved my hiney! 
Anya
When I did the plane in my photos I needed it to be really smooth and when I tried just fondant that wasn't happening. I ended up coating it with a layer of royal icing and sanding it smooth the next morning. Worked great! Wish I could remember the CCer who suggested it, they really saved my hiney!
Anya
What did you use to sand it?
I used a sanding block and a file set both made for scrapbooking. They are made for paper and chipboard so they weren't as harsh as regular sandpaper. Worked really well!
HTH!
Anya
Quote by @%username% on %date%
%body%