Jan van der Weel designed and 3D-printed a beautiful little hopper for his EK43: More info on Jan's blog: http://www.byleew.nl/coffee/small-3d-printed-hopper-ek43-grinder/
Some pictures of the 2017 ConTeXt User Meeting in Maibach, Essen, Germany: Two group photos merged into one (one of the group arrived late for the group portrait and was fused in later by Roemer Overdiep)