Some years back I saw someone online selling assorted sized construction baords cut and shaped to fit inside an Altoids tine. Cool, I though and bought some. I bought some straight away as they will be useful. Well using them had to wait a few years but now I’d like some more.
What you need to watch out for is Pimoroni tins are a little smaller than real Altoids tins. And you need to use the term “Mint Tin” on Aliexpress as Altoids doesn’t work.
The round edge boards are available, fractionally smaller than the ones I have but will do fine. Saves buying larger boards in FR4 and then making them smaller.
Junohawk 3 Pack Metal Tin Boxes with Hinged Lids Small Storage Containers | Portable silver metal tins for storing cards, small items, DIY supplies and everyday essentials at home or on the go Amazon.co.uk