Takara Tomy’s Memo Film DSi.
Available in blue, green, pink, and black, these Magic Slate stickers fit right next to your DSi’s top screen (notice the holes for the speakers), allowing you to keep notes with your system — short messages like “Find this item for so-and-so NPC”, or “Quit buying crap accessories”.
The stickers are cheap — ¥399 ($4.19) for a pair — so you won’t feel too annoyed when they look like a mess of crinkles and scratches after you use them only twice.
Import: Memo Film DSi
See also: More accessories
[Via GAME Watch]