Looking around for crochet cowl patterns I stumbled across the following free patterns that crocheter's may enjoy. Here are a few of them.
Free crochet Cowl pattern from crochet world.
This easy to make crochet cowl pattern by Allison Weldon can be made in less than an hour using a thick yarn. The pattern is viewed in PDF format.
A hooded cowl is a favorite of crocheters.
This free pattern is provided by Favecrafts
The pattern is fairly easy to make using Bernat yarn.