I love floating shelves! It's so fun to be able to play around with the arrangements, especially seasonally. Are you going to buy shelves or build them? I love our shelves from C&B but I'm not sure if they come in black. They were a bit of PITA to install but once we figured it out they are very sturdy.
We have some floating shelves that my parents bought us several years ago that I really like from Lowes. They are black and more thick than some, which gives them a more modern feel. I am hoping that Lowes carries a way smaller version.Zebra rug comes first though. :)
We're in the midst of making our own and so far it's super easy! Full details prob next weekend on the how-tos of it all.
I am so excited to see how your shelves turn out!