Ewoks #1

The short lived Marvel title Ewoks only lasted for 14 issues.  The series is based on the Saturday morning cartoon, which was heavily influenced by the successful The Smurfs animated series which ran from 1981 to 1989.  Some of the Ewok characters in the animated series are based on an Ewok that appears in the Return of the Jedi movie, but many of them were invented for the cartoon.  Wicket, the star of the Ewoks series, is the first Ewok we meet in the movie and other notables like Chief Chirpa, Logray, and Paploo also have cartoon counterparts.  Teebo is also a prominent Ewok in the movie, but his cartoon counterpart is noticeably different.  In the movie, Teebo has black and grey striped fur, wears the head of a slain creature on his own head, and appears older than Wicket.

Teebo

The Ewoks cartoon series and comics take place before the movie and in those stories, Teebo is a solid pale brown color, wears a cap with a feather and straps on his head, and is roughly the same age as Wicket if not younger.  Being Wicket's best friend, Teebo appears in many of the comic stories.  In a scene from The Rainbow Bridge story inside Ewoks #1, Teebo is shown along with Wicket on the cover as the bridge vanishes from beneath them.

Ewoks #1a - Marvel Comics, U.S. (May 1985)

All of the other prominent movie Ewoks featured in the cartoon look more or less as you would imagine.  Giving Wicket's best friend in the cartoon a different name would have been sufficient to avoid the problem, especially since so many different Ewoks characters were created just for the animated series.  It does make one wonder how this remarkably different depiction of Teebo was finalized by Lucasfilm.