When I was 18 I was down at the Stafford swap meet (CT), and bought my first welder.
A220V Craftsman stick welder, came with a pile of damp rods, a helmet and an 12 foot
extionsion cord.. $80...
The only 220 plug in the house was the oven.. I fought my Mom for years... It seemed like
everytime I wanted to weld, she wanted to cook..
Anyways.... I wanted metal to practice on.. I went to the only place I knew that welded stuff.
Told them what I wanted and why I wanted it.. They pointed me to the solids scrap bin and
told me to take whatever I wanted. I got a BUNCH of stuff without seeming too greedy..
Anyways aluminum doesn't exactly grow on trees like steel does.. I used to find all kinds
of stuff to weld on (steel), by driving the power lines in the middle of nowhere.
E-bay is a good spot for dirt cheap random aluminum bits.. When everything TANKED about
a decade ago, I paid the bills here for quite a while selling drops on e-bay, and here.
If some kid came knocking on my door asking about some scrap bits, I'd let him have a few...
If he came back with a few samples I'd let him have even more.. I might even have a job or
2 for him to do..