These are quite old covers and discart - there may well be some more modern ones out there on google images and the like…
covers by prillaman - discart by rikter…
link - http://i192.photobucket.com/albums/z28/maplefootball/ewok_adv_hires_zpspk1kfaat.jpg
link - http://i192.photobucket.com/albums/z28/maplefootball/Ewok 1_zpsoojggvo9.jpg
.
and
link - http://i192.photobucket.com/albums/z28/maplefootball/battle_for_endor_hires_zpsz7qlz6p1.jpg
http://i192.photobucket.com/albums/z28/maplefootball/Ewok 2_zpspkxuogv0.jpg
edit: the very talented ‘Ell the Ewok’ posted up the ‘Ewok Adventures’ dvd cover for both films here:-
link - http://smg.photobucket.com/user/Ell_the_Ewok/media/Star_Wars_Ewok_Adventures-front.jpg.html