Hey jdove55,
There was a previous post that had a fairly good discussion on this topic. You may want to go thru some of the archives and pick up on those posts. I will offer some suggestions and you may ponder if any of them have merit for what you seek.
1.) Any small manufacturing company or machine shops may have some items they outsource and possibly know of a company looking to outsource some small piece work.
2.) Check all the auto repair shops for the same kind of outsourcing.
3.) Since you do aluminum, and believe me, that is important, go to all the fire departments in your area and show them some of your work. Listen....those fireman love their alum. diamondplate more than their wives. Also, the truckers love to add on alum. for those with alum. trailers.....mud guards, wheel well extenders, etc..
4.) Motorcycle shops.....Listen...I'm a hardcore biker and I know. We love add-ons, especially if it shines. And there are shops who need many custom items fabricated.
5.) The landscape contractors.....their crews are brutal on their equipment. Then also may pass on to others who need repairs done.
5.) Small construction contractors....they break equipment all the time...also good for references.
6.) Leave a post at all the hardware stores....many contractors go there and could see your post.
Since you indicate you work at home, I surmise you do not have a mobile welding unit. If you do not have a small (5X8, 6X10) flatbed trailer, look to find a decent used one. You can add sides any time if it becomes necessary. If you can offer a pickup/delivery service, for an additional fee of course, you will enhance your opportunity.
Yes, crafts can be a dilemma. You have to find that special niche that are items not available, very unique, and useful with a reasonable price. You'll have to really hustle for a steady $2K/mo.. Don't give up though...persistence pays off.
I hope I have helped a bit....the guys here are great & I'm sure others will chime in.....Keep us posted on your efforts....Good luck..Denny