You can 3D print cones if you have access to a 3d printer. I've made a few larger and smaller sets for work, travel, home. https://www.thingiverse.com/thing:37

You can 3D print cones if you have access to a 3d printer. I've made a few larger and smaller sets for work, travel, home. https://www.thingiverse.com/thing:3784941 https://www.thingiverse.com/thing:3784941