A random donation from China, the following is a Nintendo DSi SD card used during development of the console.
Sadly, this card is dead and unreadable. These cards would normally contain logs from tests, recovery attempts would also damage this card as you have to open them to recover.
An early prototype used in development of the PlayStation 2 Eye-Toy. This item was produced by OVT in 2003. https://web.archive.org/web/20030620142309/http://www.ovt.com:80/pr_sonySelectsOmniVision.html