Mystery Boxes are not always available to order online.
When I know I have enough exciting bits and pieces in stock to fill them with and keep them high-quality and interesting, I offer made-to-order Mystery Boxes with a degree of customisation, themed around nature and natural curiosities.
Sometimes if I can't offer these, I can still make and release pre-made boxes, which usually follow the theme of natural curiosities, but can sometimes extend into other themes represented in the shop. Though I'd like to offer these regularly or on some kind of schedule, it's not always possible.
Mystery Boxes generally contain more than 40% extra value on top of what you pay, and can take an hour or more each to make. Inside the box you'll receive a list that includes the description and RRP of each item, sealed with a spoiler warning.