I made this to run coaxial cable along my baseboard trim. I didn't want to drill into the wall. I used a piece of 3M double sided tape on the back, and it worked perfectly. I would recommend printing this with it standing on it's end, not standing on the rectangle base. Otherwise, it ma need supports.

Hope you get some use out of it. I'm certainly no pro in CAD, so if you had success or any questions, please let me know in the comments. I couldn't find a mount that wasn't screwed into the wall so I made this.