I stock a variety of art and craft supplies, which are listed in their own sections.
Items which were purchased wholesale and repackaged are sold in a way to allow you to pick the colours, sizes, and other variables. These are unlikely to be restocked once sold out, because the repackaging and listing process is quite a lot of work, and I find it difficult to keep up with.
Items which I make or modify myself are sold as blind box items. I enjoy making these items, but as above, the process of listing all the individual colours and options takes more work than I often have energy for. Additionally, I have a very loose and vibes-based process when creating these items, which are often difficult to repeat. By offering these items blind, I can maintain a wide variety of colours that can be quickly restocked.