Here is my design, which I have been using for half a year.
The technical data:
- Attached with 3 screws of the front panel
- lasered from 0.5mm stainless steel sheet, the prototype was milled out of 1mm aluminium sheet.
- 10 degree angle of inclination
Pictures, CAD files and production instructions can be found here (in German):
In brushed and polished stainless steel, the sheet metal would look even better.
PS. Maybe the winner of the competition could also get a professionally produced bean deflector? I think one or two of them may already have a tamper.