Wish you could take a picture and just get the outline?
​There’s an app for that.
I use it when I want to trace something on my tile. I print the pic and then use carbon paper to trace it.
Photo is from Pixabay where you can download quality free Photos and Images. Love that website!

Clip2Comic App

​itunes.apple.com/us/app/clip2comic-caricature-maker/id876328355?mt=8​

Snapseed App

From Google. One of the best all in one photo editors.
Thousands of effects and fixes!
All in one place!
Search for Snapseed in your app store and upload.

---