These candy reservoirs and base are compatible with the basic "Modular Candy Dispenser" found here:https://www.thingiverse.com/thing:4606016

The "voronoi full reservoir" can be printed as is and used with three push button cartridges.

The "voronoi single reservoir" can be printed three times or used in combination with the single enclosed reservoirs found here: https://www.thingiverse.com/thing:4606028

The "top cap" holds the top of the three reservoirs together, the "connector" holds the bottom of the reservoirs together and connects them to the push button cartridges.

See here for a video on how these and some of the other modules fit together: https://youtu.be/759B56bt7HI

See here for more modules:
Open Push Button Cartridges: https://www.thingiverse.com/thing:4606024
Enclosed Candy Reservoirs: https://www.thingiverse.com/thing:4606028