I wanted to not mess up half the table when filling the powder into the shaker. Small funnels with a narrow opening won't do, so I created this simple funnel. It features a very wide opening for the Bertrand shaker (or any shaker of similar size). It is a fairly big model. Scale to fit your build size. On the Ultimaker 2 I scaled it to around 85%. And because I can't stand it when people don't share their source files - here is the .stp and .3dm version