How do you create custom Arrowheads in illustrator CC?

Question

I'm trying to create a custom arrowhead in illustrator CC but can't seem to find out how.

Answer 1

make your design, select it with the direct selection tool, and click on the brush definition panel up top left to the opacity. add new brush and select art brush. Finalize your settings and finish. now you can make any lines with the pen and apply the arrow definition to it and there you go.