How to make an edge like this in Ai?

[PONGPOL]

After creating a vector in Ai, then I want to make the edge of vector look like this. How can I make it? I tried many ways but it doesn't work. 

[Monika Gause]

Please tell us what you already tried and chow us what didn't work. It will spare you the need to repeat that to everyone who makes a suggestion.

[PONGPOL]

I want to make the edge like this in Ai.

https://www.youtube.com/watch?v=ZdKWza518xc

[Monika Gause]

That's Photoshop. You said you have already tried Illustrator.

[Michael Bullo]

Have you explored the Photoshop Effects within the Effects menu?

[PONGPOL]

Not yet! 😂

[Michael Bullo]

Have a crack and let us know if you need some help. Good luck.