Can you customize what's in the box? I know Hired sends out amazing swag to their companies/clients in boxes like these, it would be great to be able to use this to run something similar.
I have worked remote for a few different companies, and the more compelling offer is a service with a high-degree of customization, which can include a t-shirt and some stickers, too. Plus, you could charge more for curating and purchasing. Suppliers may also pay you to be part of your curated offering.