Reverse Engineering

For the most part, I have been doing reverse engineering for my personal projects as well as projects for friends and family.

I was approached by a friend of a friend to reverse engineer a few different headlights into air intake ducts suitable for 3D printing.

This turned out to be a very fun project, and it got me wondering on the best approach to market such a service (beyond word of mouth)

For those that have been in the reverse engineering industry for a while, what would your suggestions be?