I started blacksmithing. So far I've got it up to 38 points without
putting too much money in it besides spending on molds, sharpening
stones, and water. I'd like to keep it that way. But now it's
becoming a little less clear how I should proceed since the things I
make no longer give me more experience.

So far things have gone as follows:

rusty stuff -> tarnished stuff -> ore -> metal bits. From metal bits
I'd make either files, studs, or skewers.

Basically, I'm wondering if there are more easy to find stuff that I
can make things from that will further my experience as a blacksmith?