Comment by tyingq

Quite a long time ago, I had some success with finding things that were custom made and making tools to better model/simulate what the end product would look like. So, for example, some place that sells custom pendants/necklaces with a name on it. A front-end that lets people enter the name and produces a photo-realistic rendering of the necklace can drive sales they wouldn't otherwise get. I got past $1k/mo in revenue, but then had to put it aside for reasons unrelated to the work.