You can now buy your own Brave clothes and gear! Just go to https://store.brave.com/ and start shopping. It is not a huge collection but there are some nice options. There are stickers, sweatshirts, shirts, sweatpants, sandals, etc.

Brave states you can pay with either Ethereum, Dai or a Credit Card, however while doing a trial run it is only letting me pay with Credit Card.

Here is Brave's synopsis:
Brave’s partnership with Origin on the new Swag Store represents a move away from old-world e-commerce solutions that track users and clash with Brave’s core privacy values, and a step forward in Brave’s progressive decentralization goals. With Origin, the new Brave Swag Store is hosted entirely on IPFS, a peer-to-peer distributed file system, and includes zero tracking cookies or scripts.
I honestly am amazed I can't buy a BAT/Brave t-shirt with my BAT. Missed opportunities guys!