Simple Plate
thingiverse
The customized version of this design can be found at http://www.thingiverse.com/apps/customizer/run?thing_id=46884, where you can adjust various parameters such as corner_radius (set to 10), perimeter (-1000), case_thickness (1.8), qr_scale (1.6), tag_height (80), qr_y and qr_x (both set to 0), corner_num, qr_bottom, tag_thickness (3), code_flip, round_corner, qr_size (41), obj, qr_data (http://de.gravatar.com/bold888), qr_thickness (5), per_h and per_w, hole_r, hole_y and hole_x, qr_tolerance, tag_width (80), and add_sub, along with qr_rotate (both set to 0).
With this file you will be able to print Simple Plate 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 Simple Plate.