3M Tape Shelf
thingiverse
Just Print 2 of these out and slide a piece of wood in the slot and use 3M tape on the other side and stick it to what ever you want.
Download Model from thingiverse
With this file you will be able to print 3M Tape Shelf with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on 3M Tape Shelf.