Bulk USB Storage

At my work, students need to have access to usbs, but rather than laying them down in a bin, I created a few solutions.V1 is from a years or two ago, created in Tinkercad and only holds 32 USBs vertically.V2 is a design I recently made, holding 64 USBs in an octagonal fashion. It does not need a ton of infill and can be printed without supports.I am working on a V3 that is both space efficient and can hold multiple.