This is my oreo cake. I got the idea from here although I don't remember who had made the one I got the idea from. I took 2 round chocolate cakes and iced the tops with buttercream. On one I put crushed oreos on it and place the other cake on top of the oreos (iced side down). I then iced the cake in buttercream, cut a mini half moon shape out of it so it looks like someone had bitten into it, used tip #22 for border, put crushed oreos on top, and put oreos standing up on top.