When I'm blending my interests, I find a Gawahazee coat works quite well. Though they take a bit more sewing skill than harem pants or skirts. I have also used the Fat Chance belly Dance choli pattern. It takes some measuring and carefull piecing together but properly constructed it will you tighter than duct tape if you want. :) It is also easily modified if you would like to cover your stomach. Just simply add a long rectangular panel to the bottom band of the pattern.
For the Gawahazee coat picture
http://www.pyracy.com/gallery/details.php?...525&mode=search
and I'll try to post one of the choli, with a drape too.
The Duchess