My home bar set-up consists of:
-an unfinished wood shelf spray painted black (purchased at ikea)
-a metal tray spray painted chrome (purchased at ikea)
-two metal racks to hang glasses spray painted black (purchased at ikea)
-a wood wine rack cart (purchased at target)
-silver upholstery tacks
I hammered the tacks onto the edge of the shelf (very therapeutic) and added the metal racks underneath. My final touch will be to add a handle to the side of the cart, so I can hang cocktail linens (monogrammed of course!).
Some elements to assemble your own swanky/economical barcart: