Fellow scannercam hobbyist checking in! Did you also discover the trick of taking "HDR" photographs by setting the software to do a "colour" scan with every colour channel set to a different exposure?
Anyway, in my case the hobby led me down the rabbit hole of slitscanning and other spacetime-warping artworks, such as Bill Spinhoven's "It's About Time" (who was one of my tutors in art school, and AFAIK was the first artist to do this in a real-time installation)
http://www.spinhoven.nl/work/EN/workitsabouttime2.htm
These day's it's quite easy to do with software. Here's a test of one of my own prototypes made with Processing: