I designed this tamper station to keep everything in one place. I added Ironing to the top surfaces to make them smoother so the coffee grounds would not stick everywhere and its easyer to clean.
This model will fit the De'Longhi Portafilter from amazon others might fit as well.
It is designed for a 51 mm Tamper, Portafilter and the aerator listed below:
The outer diameter of the portafilter is 61mm and the outer diameter of the aerator is 20.5mm.
I also uploaded a larger version of the Tamper station, this has additional space of a Distributor.