Based on that old "101 Unorthodox Uses For The Scanners" game. I had the idea a bit randomly. Is a bit silly, I know. But...uh...yeah. 8D
1. Source of scrap metal if you're low on money.
2. Source of about eighteen patents if you're low on money.
3. Use Lyoko to hide the bodies.
4. Use Lyoko to hide your diary.
5. Use Lyoko to hide...well...anything really.
6. Somehow splice Lyoko's engine into another game, and use the scanners to immerse yourself in that game. Lyoko-style Team Fortress 2, anyone?