My new drybox for standard spools up to 1kg.
3D printed parts (PLA) with 3D printed roller bearings.
You'll also need a 5l sealable standard Tesco food box, a couple of M3 screws, a couple of M3 washers, a Pneumatic Connector threaded M6 or M5 (M6 is better), a piece of PTFE tube, a moisture meter (link below) and a couple of bags of silica gel. And a passion to make something, that's essential!

Foodbox:
https://www.tesco.com/groceries/en-GB/products/296663107

Moisture meter:
https://aliexpi.com/Tbxp

Pneumatic Connector KJH 04-M6 (but I'm sure you have some in your drawer at home):

https://aliexpi.com/Nzc4

Video instruction here:
https://youtu.be/OGFrGbWTw8s