I have a idea for a head ache rack, but no idea what metal to use. I was wondering if it would be better to use stainless or a mild steel. Any input would be awesome and greatly appreciated.

Hello, I am fairly new to welding, wish I would have started way before now. I Have done a lot of things in my time, but nothing quite like welding. I AM ADDICTED! I am currently taking welding courses at night, and hope that I can be a welder at some point for a living. Soooo, that's about it. Look...