I've got a DS Lite and so didn't get the thumb strap that Nintendo put in with the original DS pack. I've never used the thumb strap but I've heard it's good for games like Mario 64, as it allows you to use the touch screen more like having your thumb on an analogue stick, compared to using the normal stylus. Does anyone know if there are thunb styluses available separately? I don't really need it to be a strap, just something that goes onto my thumb. Any recommendations?