Bracket & holster for mounting dental spray guns. These are available cheaply on Amazon and Aliexpress and can spray both air and water or another liquid. There are two parts - the “holster” has the contours to fit the curves of the gun and is slit for the tubing to pass through. It clips into a 1" hole drilled on the edge of a plate or mounting bracket. The “Single Bracket” is a printable angle mount that accepts the holster, or you can make the same geometry in another plate as shown in the photos.
The author marked this model as their own original creation.