See the entire DIY Altoids NDS cartridge case flickr set in high resolution
I’ve used their round tins for storing Sony PSP UMDs, and just yesterday I found out that the Altoids chewing gum tins make a perfect fit for at least eight Nintendo DS game cartridges! What a savings from all those expensive game cases selling on the web.
Just add paper or form on the tin’s base to protect your precious cartridges as needed. See the entire DIY Altoids Nintendo DS cartridge case flickr set.