Yes! You can purchase empty bulb storage boxes for C7 or C9 bulbs here.
Please note that the empty boxes we have available at any given time are a result of us opening up fresh boxes of bulbs to send out individual replacement bulbs for ones that might have been damaged in transit to our customers.
As we often sell more C7 bulbs than C9 bulbs, we don't often have empty C9 boxes on hand, so if you don't see stock availability on the storage box page, it means that we don't currently have spares for that size in stock.
Boxes are shipped fully assembled and the label may be from a box of Jeweltone, Classicolor or Candleglow (or even from a single-color box).
We do not currently offer empty boxes for our S14 bulbs.
In the future, I hope we stock these independently of what's left from our replacement inventory.