From Fedora Project Wiki

Red Hat Cool Stuff Store

We have partnered with the Red Hat Cool Stuff Store to offer several products with the Fedora logo, including t-shirts, hats, and pub glasses. Visit the Fedora section at https://store.ecompanystore.com/redhat/Shop//#/catalog/Collections/420-31-FEDORA

HELLOTUX

HELLOTUX sells authorized shirts and sweatshirts with the Fedora logo. They are based out of Europe, but they ship worldwide. https://www.hellotux.com/fedora

Unixstickers

Unixstickers sells authorized goods (right now, just stickers) with the Fedora logo. They are based out of Europe, but they ship worldwide. http://www.unixstickers.com/fedora