Here's an illustration trend I've noticed of late: beards! I guess with all the illustration love of woodland and forest imagery that men with beards wouldn't be far behind! I dedicate this post to my bearded husband, Glen. The poster above is by Keith Shore and is available at his shop.
These ones are by Etsy seller Ashley G.
By Glasgow-based Little Robot.
And if you can't grow your own, a good option might be Something's Hiding in There's wooden mustache:
From the fabulous Marc Johns.