I often find myself in need of henna-like designs so while working on this: fav.me/d3h21x3
I made several little designs that can be combined for more complexity.
All non-commercial use if perfectly fine. Please ask about commercial use. Simply hit download and uncompress the zip folder. There you will find 6 little henna designs in PNG format as well as one example piece you can use of your desktop wallpaper ect.
Please favorite and link back if you use this. Also I'd like to see what you come up with so I can add it to my favs and link to your piece below.