Jolly =
Santa Claus... I'm not sure why, but the word 'jolly' is completely associated with a fat little guy with a white beard saying "ho ho ho"...
Joely is alright. It's better than
Jolie, but if I just heard it I would think it was
Jolie. I kind of like
Jola though.
Jolina could be another, but that takes the celeb thing to a whole new level... Angelie Jolina... yeah. Anyway, if I used one, I'd pick
Jola.