The slip-on cover for the regular jetBook should be the same as the one for the JBL,
except for the slot in the back for the battery cover/bump.
https://www.mobileread.com/forums/sho...96#post1446796
Shows some of the cheap/inexpensive vinyl decals I have on my JBL slip-on cases.
The slip-on cases add very little to the dimensions of the jetBook.
Perhaps you can spruce up your ugly case.
Luck;
Ken