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%.
Print with "spiralize". If your printer is well calibrated you can skip "brim" and let it stick to the heated bed with the wide opening facing down.
Moment of Insipration
And because I can't stand it when people don't share their source files - here is the .stp and .3dm version