When I first came up with the design for our kitchen, I envisioned a black range hood chimney...which we installed originally. What I hadn't taken account for was our 10 foot ceilings and the issue of the chimney being too short to reach to the ceiling. We were left with the options of purchasing an extension which would run around $200 for a three sided metal piece, or to leave it as is - looking a little funny, or to build a vent hood and just cover it all up.
You can guess what my vote was.
So I created this design board to help me get focused. I landed on a vertical shiplap vent hood, made from ripped pieces of 1/4" birch plywood, and flanked by floating shelves on both sides. We had installed floating shelves with the original range chimney, but they were hung up using metal rod brackets that the heavy wooden shelves slid onto. Because our studs weren't in great locations, the resulting shelves weren't super sturdy, and one sagged both due to the lack of studs and because of a warped board. All in all, I knew we could do better and would need to build something but solid for when we rent this house.