Very Nice work. One consideration for medical Cannabis storage is having a lid that have a small hole poked through it and a piece of adhesive placed over the hole so a vacuum can be pulled inside the glass. Metal screw top lids allow this very well, although plastic screw top ones not so much. I put all my Cannabis meds into glass and pull a vacuum on them for storage; flowers, hash, oils, waxes and shatters - all in glass, all with a lid that allows a vacuum seal to be pulled for long term and even short term storage. You might want to consider this for other "storable materials" that might also benefit from having a vacuum for storage in your custom containers. Great work