I decided with all the projects I do, that I needed a logo. Since I am on a bunch of photography site/facebook groups and do some semi-professional photography at the hospital the creepy social media advertising AI sent me a promotion for PhotoLogo which looked pretty cool (and it was much, much cheaper with the code).
So i got the logo (and paid for the original file (i.e. AI file so I could use it for the laser). Anyway I like the logo, and used it today on the back of a project (which I will post). In the pack I got black on white and white on black (the AI file obviously can get set anyway). You can use the PNG files (particularly the white on black) as a masked watermark in Lightroom to automatically logo all your photos.