Where Can I Buy Splatfest Wristbands?

[SquiddyKat]

I saw on eBay awhile ago, a Splatfest shirt included it. I'm thinking they all come with do but it appears that not all Splatfest shirts come with the wristband. I would like to buy some.

Update: I'm including photos of the Splatfest wristbands in real life.

 

[frankus]

Those look pretty cool. I hope Splatoon 3 has Splatfests!