Oh hell, yeah. I made these.
These were made with a layer of strawberry cake, a layer of strawberry butter cream, a layer of chocolate cake and then covered with chocolate icing. The piping was done with a simple buttercream and the shimmery stuff is edible shimmer powder I got from Michael's.
I'm making them again for a friend's daughter's birthday party and have altered the recipe a bit. I felt the strawberry cake tasted too "GF" and the chocolate cake was not chocolatey enough. For the next round I adjusted the chocolate genoise recipe, subbing 2 tbl of almond meal for 2 of sorghum and 2 tbl of cocoa powder for 2 of the starches. The result was just what I was looking for. No one would suspect it was GF. I haven't done the strawberry yet, but I think I will adjust the plain genoise recipe by subbing in some almond meal, some strawberry jello and maybe some puree, but I hesitate because of the liquid content. Tricky business.