Mii Editor is a cool flash application that can edit and save Mii binary files. You can transfer your Mii to and from the Wiimote with MiiTransfer, edit it with the Mii Editor, or take screenshots and share your Mii file with friends.
- Mii Editor
- Wiimote data transfer library (includes MiiTransfer utility)
- Detailed info on the Mii data format
- My Mii