I decided to do a henna glove today for my London trip. I do henna with a powder and mix it with water. You only need a little amount of both for this.
I start off by lining the glove. This way it's much easier to fill out and make it look like an actual glove.
Then I start filling it out just using my imagination . I start from the corner and go from there.
The finished result. I let it dry as long as possible (like 1-2 hours) and it's all black. It will last about a week. You can always do a touch up if you want it for long.