Bboy Beanies for spinning on your head?

I am a bboy and I want to spin on my head lol But to prevent injury from doing headspins and doing other breakdancing moves where can i get a bboy hat so i can do the spins and protect my head. Do I have to make a beanbag myself? And then use that to place it under the hat and do my spins? I don't want to use a skateboarding helmet b/c if i'm going to be performing for ppl I dont want to have to bring a skateboard helmet! Plus no online stuff, I want to purchase the hat or bean bag in stores.