I just made an economic model of the Shoe support (wall mount) by andy25lion (https://www.thingiverse.com/thing:3705605) It uses less material and less time to print.
The infill needs to be at least 20%.
37.5% Less PLA and in my printer about one hour faster to print.

Print Settings

Rafts:

No

Supports:

Yes

Resolution:

0.3

Infill:

20

Filament brand:

BasicFil

Filament color:

Green, purple, black

Filament material:

PLA

Notes:

The infill needs to be at least 20%.
37.5% Less PLA and in my printer about one hour faster to print.