Quest Series-Communication Gear: Rainbow Projector
This device is disguised as a highlighter. When the cap is pulled off it transforms into a small flat device with several bottons on it. It works by pressing a green botton which projects an artifical rainbow which can then be used for Iris Message. It is then hidden by putting the cap over ten end of the device.
If createing a rainbow is unavalible this can be used. This is also easier and cheaper then createing a real rainbow. All of this makes it useful for iris messageing.