To produce a better, albeit simple, way to manage fine powders I came up with this: The quickest way to limit those annoying hastles while keeping it readily disposable, quick to make and cheap to produce.
I introduce the Pyrotechnic Powder Pourer.
Step 1: Getting started
Firstly we need to get just half; a full piece works just as well but is slightly less manageable and has no real benefits over half a piece.
To do this we just need to fold the piece in half, unfold, and then cut along the folded line.
Step 2: Folding sequence and back stop
Fold your half a piece of paper in half again length ways, and then bring up a corner and fold it at a 45° up to approximately half way. Fold this back and forth, and then unfold everything.
To turn the back triangle into an upwards facing back-stop we need to invert the folds to produce three valley folds along with the one mountain fold. To do this, fold the back triangle into the middle, one half at a time until the slip is inside the folded paper.
Step 3: Pouring spout
This is easily done by just creating two mountain folds that meet at the pouring end to create a sturdy, angled point for your media / powder to slide out of. Start by folding one arm of the paper outwards as indicated, then repeat for the other side, again folding outwards.