Hello all! I'm really just getting started in the cake business and am just curious what you would charge for this unicorn cake (3 layer 6 inch)?

I would charge $110.00.  That being said, what you charge for a cake depends upon a million different factors and every area is different.

What Sandra said is so right.......there are a million things to take into consideration in pricing including but certainly not limited to: location, how much you have invested in ingredients including packageing, insurance, liscense fees, utilities. 

I make my unicorn cakes with 7" cakes and make is taller (about 6-6.5" tall).  I charge $75 for one like this and add additional charges for anything extra (like ombre colors in the cake frosting, gold sprinkles, etc.)  Your time is valuable!  ;)