Main Features: Safety, Durability, Built in Pot Stand and Funnel, Wind Resistant, and Easy to Light with no priming pan.
Step 1: List
cooking spray can (PAM or equivalent)
metal knockout from an electrical panel or other metal disc
fiberglass insulation (formaldehyde free is recommended)
needle nose pliers
gutter crimping tool
drill and bits
Step 2: Being an idiot
Cutting a pressurized can is stupid and I'm not responsible for you being an idiot.
As long as we're on the topic of being an idiot. Use a cooking spray can, not a spray paint can. I wouldn't want to eat anything cooked on a stove that had chemicals in it.
Step 3: Cutting the can
Use a hack saw or a dremel tool to cut the can on the marker lines. Be sure to keep the cuts straight. You will need to save the cap and the middle section of metal for later use.
Inside the can will be some junk from the oil and a plastic straw. Clean it out the best you can and remove the straw.