Spoolfinity, like Gridfinity, accept for empty Bambu Labs spools. Be sure to check out Zack, the creator of Gridfinity. Definitely a don't miss YouTuber.
The Bambu Labs reusable spools are very nice quality but after lots of printing I've ended up with more than I need. I didn't like the idea of throwing them away. I even less liked the idea of storing an ever growing unused pile of them. This project is designed to give them a new life. It also seriously reduces the amount of shelf space I devote to my printer spare parts. The Spoolfinity base fits inside of the Bambu Labs spool. It takes advantage of the spool's twist lock action to create a secure lid. The project includes optional dividers to create custom compartments within the base.
This project includes two profiles:
Speaking of accessories, I've published a template project which includes everything you need to create your own accessories. It includes a simple storage bin design and the corresponding Fusion 360 project file from which you can develop other designs. Some ideas for new accessories:
Enjoy!