$20 !!!!!, man, I am in the wrong part of this business!!
Since as you say, you are new, you might think about making a cut-out cake, using a sheet cake and cutting out the pattern of an iceskate, then making a gumpaste "blade" and sticking it in the bottom of the skate. I don't know if I would go for anything stand up if you don't have much experience. I also saw somewhere that a pom-pom was put on the top of the toe part.
You can put it on a board with some edible glitter for shaved ice.