I made a hat with a fan too, but I used a USB-powered fan (search amazon for usb portable fan, maybe with handheld keyword also). The benefit being that you can power it from a rechargeable USB powerbank, which of course come in all shapes, sizes, and power reserves. I got about 10 hours fan life from a 4000mAh powerbank. The specific fan I used is called arctic breeze. Oh, I also found a fabric mesh that I put on the inside of the hat, to help prevent hair getting caught up in the fan.

Good Job, Bro. I appreciate your work...😊😊😊😊😊🥰🥰🥰

You are very creative bro! Amazing video!

Brilliant idea.

badiya bhot badiya bro

Por fin revelaste tu rostro, buen video!

Nice your ideas Good job

AWESOME MAN

Thanks

crazy and nice video bro 👌👍

buenisimas ideas

COOL BRO LOVE it

well done!

wow .bro good job

Like muito bem mano

And i am your bigest fan also i watch all the videos of you

Awesome! 😉😉

Very nice video 👌👌👌👍👍👍

Really awesome work, dude! 😊

Wow! nice video.