Stall wash rack
Simple and efficient! http://www.precisebuildings.com/images/uploads/interiors/403/oxford_pa_custom_tack_room_kitchen__large.jpg
Love the sliding tack doors and small overhead apartment/storage area. I would also make extra storage under the stairs.
Refurbished entertainment center into a tack closet
Fancy grooming stalls My horses would love this!!!
Dream tack room! i kind of want horses...and my teddy bear has to teach me how to ride again...
Feed room. I love the idea of these bins! I definitely want to do this! One bin for each type of feed! And of course, add labels!
Make a house plan that is like a stable. Also finish the wood so that every once and a while you just remove everything and hose it down.
wash stalls for horses - Google Search