Homebrew Nintendo E-Reader Cards!
The Nintendo E-Reader format has been reverse engineered! Now, small homebrew games can be turned into E-Reader cards that you can print out. Nice. E-Readers are about $40, though, which is about half the cost of a full-on Flash Cart that can hold much larger games.
John Tokash 
If you have the nintendo e-reader dot code maker, send it to me, I’m making custom dot codes from a game program creator I have, so if you can e-mail it to me at airikitascave@gmail.com I’m taking e-reader code requests once I get the program. I’ll post back when I get it too, incase anyone is interested in a personalised animation screen.