It is a little known fact that you can pretty much make anything with steel plumbing pipes. It's true. With a little creativity, you can instantly have a custom industrial strength work table, kitchen cart, clothing rack, peg leg, whatever. The possibilities are endless.
Most hardware stores sell plumbing pipe in 6 inch increments and have a variety of accompanying fittings to connect them. Just buy some and figure it out. No prior plumbing experience necessary.
Here's what I did with 3/4" black steel pipe: