Coffee group funnel

If you use a coffee grinder like the Mazzer Mini Electronic and have a coffee machine with an E61 std commercial style group handle then this is for you.
I made this to help keep my work area clean as coffee grounds get statically charged during the grinding process and can get scattered everywhere, this solves the problem.
A std 58mm tamper will pass through the funnel allowing the coffee to be tamped without spillage and the funnel can be removed while the tamper is still in place.