The Eye-Fo Computerised Frisbee is apparently ‘set to become this year’s phenomenon’. Not sure what kind, but let’s go along with it for a while, shall we? £11.95.
‘The EYE-FO packs an on-board computer that can be easily programmed with any text message up to thirteen letters long. The lights are sensitive to the frequency at which the EYE-FO spins, so ensuring that the message is crystal clear in daylight, and at night it leaves a trail like a shooting star.’
I bought one of these a few years, no one believed me when I talked about it so I had to buy one just to prove they existed.