I designed a wall mounting system for my basket model, so that the baskets can also be mounted on the wall in the bathroom.

You can find more basket sizes here: 
Organizer/Basket for Drawer von SheepMe! (Printables.com)

The wall mount works with all basket models.

Modell

The model includes two variants of wall brackets.
One for one basket and one for two baskets stacked on top of each other. 

Printing

The files already contain pre-prepared slicer files with all the necessary parts.

All parts can be printed without supports. A 0.4 mm nozzle and a layer height of 0.20 mm with printer default settings for infill, etc. are sufficient for printing. 

If you use the STL files, you should pay attention to the alignment of the parts. 

In damp rooms, I recommend using PETG or ABS filament for printing.  

Additional components

You will need additional, non-printable components for assembly.

For one-story wall mount

• 2 x M5 Hexagon nut (DIN 934)
• 2 x M5x8 Hexagon socket head cap screw  (DIN 912)
• 2 x 6x30 mm dowels and 2 x 4x30 mm screws for mounting

For two-story wall mount

• 4 x M5 Hexagon nut (DIN 934)
• 4 x M5x8 Hexagon socket head cap screw  (DIN 912)
• 2 x 6x30 mm dowels and 2 x 4x30 mm screws for mounting

In damp rooms, I recommend using stainless steel screws. 
DIN 934 Hexagon Nuts and DIN 912 Sockets and Washers  (Amazon.com) 

Assembly