I’m pretty hopeless at photographing stuff. Someone on the Regretsy forum posted this really helpful link on how to make a cheap light box out of stuff you already have at home. This is for small 3-D objects.
Tutorial: How to make an inexpensive light tent
You can also get portable studio kits like this one for $40.
I painted the inside white instead of using Bristol paper, and when none of my indoor lights was good enough, I took the box outside. That way I got full-spectrum light without any harsh shadows at all. I set the ISP for 800, then had to raise the contrast a bit in editing. 1600 was way too bright.
I got feedback that people needed to see the scale of my items, so I put this together. It's a piece of paper folded into a triangle with a paper ruler taped to it. I downloaded the paper ruler here: Printable paper rulers. (Yes, I verified the size with a real ruler! It's accurate.)
One thing you have to watch out for with any light box, of course: