Here's what comes to mind when I look at what you're doing.

I have a monitor problem where one is too short, and because of how my desk is I'd have to raise both of them different heights for them to fit right. If I had a couple books the right size, it would solve the problem- but that would look ghetto- and I don't have books the right size anyway.

What if customers could send you a photo of something that could be solved by custom woodwork that they don't have the means to do themselves, so you could exchange measurements & sell a solution like that?