Continuing re: the idea of being ready and able to get things done using un-expected and unlikely "parts" and supplies...
My day job of maintenance in hotel rooms has made me into a disciple of McGuyver. I've learned to improvise, adapt and overcome. I have a pretty keen eye for examining things and imagining possibilities, for doing unusual things w unlikely stuff. I have this saying--"stuff fits".
I got into my hobby of rocket Stove building 4-5 years ago. It's been amazing. Using pots, pans, tins, barrels, drums and cans, Ive built some effective cooking equipment for outdoor cooking using free fuel lying almost everywhere. I can boil, bake, roast, fry, grill, all on stuff I've made. It's addictive. I've hunted in thrift stores and junk piles to find stuff, sometimes finding something that looks interesting, then that something has been just right for a project years later...
Also, being a drummer, I will examine things for their sound qualities, tapping then without even consciously thinking, occasionally finding good percussion sounds in metal things. This discarded copper 90 deg. elbow is really a cowbell, just I had to discover it...
This small cocoa tin is now a small woodgas stove-
This knick-nack aluminum pot and a stainless mixer cup, found together, fit so well, that with the right holes and 4 bolts added- they are now a powerful woodgas stove!
This combo of 3 barrels, along w/ too much to explain here, are now a large Rocket Oven, perfect for pizza pies and bread!
This combo of a gallon paint can, #10 restaurant food can, and a small chili can, along w/ another cut down #10 can and a pie tin, some flat steel, screws and pieces of brake line tubing, are a brand new rocket/woodgas stove...
This outdoor cooking thing all started when I saw the phrase "rocket stove" in a book. And I don't even weld. Yes, I'm showing off some

I'm just pointing out what can be done w/ some creativity and Imagination.
Stuff is everywhere, it's up to us to see possibilities!
Tracy G