Off the sail completely?

We're referring to telltales (telltails?) attached to the leech of the sail that fly in the breeze behind the leech (the trailing edge) of the mainsail. Mine are made of ripstop ribbons but I find that when wet they stick VERY well to the Mylar sail. Although they do tend to dry very quickly. I don't know whether anyone can suggest a better material for them? (I've tried wool but find the same problem).

One of the guys at the club suggested cassette or video tape.