I needed to get my new LYPC Large gumball machine to dispense just one 20mm skull at a time. The one photo shows the spacer and one red skull in one of the three dispensing cavities with another cavity having both a skull and red gumball together in a non-spacered cavity. Thanks to Emmett for talking up openSCAD. I downloaded it, got it up and running and got the spacer designed and printed within a couple of hours. And it was the right size on the first try! So, I guess this is just a brag-post; who else is going to need this spacer?! -Joe

Printed in white PLA with 0% fill in case I need to jam it into place! It's basically just cylinder intersections and differences from measurements off the machine in OpenSCAD using the programming examples as templates. OpenSCAD.org ftw!