Mod your e-Reader to fit in a DS
Nintendo's e-Reader has thus far been incompatible with the DS due to the placement of the link port adaptor for the GBA; however, if this was the only thing holding you back from putting that GBA in the closet and using the DS fulltime, then bust out your handy tri-wing screwdriver and get to work.
It's a pretty straightforward hack, even more so if you don't care about maintaining compatability with your GBA. Open the housing, remove the link port connector assembly, and put it back together. Then you can try printing out your own homebrew e-Reader cards.
[Via hack a day]
