I noticed these metal stools from my classroom had some welds that were coming apart.  They were earmarked for disposal so that nobody hurt themselves sitting on them.  They were subsequently liberated from an ignominious end in the dumpster / scrap pile and re-purposed to build an awesome propane burner stand for homebrewing!  I made it at Techshop to practice my MIG welding.  



2 x broken metal stools from your local school district 
1 x replacement propane burner (cast iron, available at your local homebrew supply store)
1 x brass orifice
1 x combo regulator, propane hose, needle valve assembly

Step 1: Cut and Bend Pieces From the Stool, and Grind Down Burrs/sharp Bits

I used the combination of an angle grinder and hatred towards these stools to cut them into pieces.  This design calls for the use of 7 legs and 2 leg support circles, however you could make your own design that incorporates the metal from the seat.  I chose to scrap the seats because of the riveted masonite piece that I didn't feel like dealing with.  

Make sure you switch from a cutting wheel to a flap disc to grind down sharp bits from the old welds.  Secure with jigs/clamps so that you don't have an accident.  Safety first~!
This is a nice showcase of metalwork tools/techniques, and points for use of the word "ignominious" :)
Something else to consider: the burner head, piping, pressure regulator and temp control from a discarded natural gas hot water heater. They're plentiful, have the basics for temp control, and can be plumbed for house nat gas w/out lp tanks, and of course they are free!

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