I saw a few cakes in the gallery that feature cake transfers. How do you use them? Are they difficult? Thanks

Do you mean a frozen buttercream transfer? I have used it several times. There is an article on them. I will post the article when I find it. but the same technique can be used if you use chocolate or royal icing. As far as difficulty I would say that they are pretty easy but the thing you have to remember is 1 to reverse the image if need be and 2 the more detailed the design is that you are using as your image the longer it will take. HTH

Here is the article:

http://cakecentral.com/articles/?s=frozen+buttercream+transfer