While watching youtube videos I came across a guy that was dropping flour bombs from his rc plane. I saw this bomb drop system and I thought that it would be awesome if there was a variation of this bomb that could hold flour. I could not find one so I decided to build this one. It was all built in Prusa Slicer. I am still waiting on servos so I have not had the opportunity to drop this from my plane yet. But I will leave an update when it gets dropped.
It uses 5mm by 5mm by 1.75mm magnets. Although the hole can be drilled out so you can use bigger magnets.

The hole is the perfect size so depending on you printers dimensional accuracy you may need to drill out the hole. The correct drill bit size is .196 or close to that.
I do strongly recommend printing with supports. It might be able to be printed without them but i'm not sure.
The settings I am using are:
2mm layer height with a 4mm nozzle
20% infill
3 perimeters
3 bottom layers
3 top layers
snug supports
Make sure to leave a like and download!!!!!!!!
The author remixed this model.
Made it so you could put magnets in and flour. So when it hits it makes a white cloud.