Sometimes they do. They did when they launched yubikeys on github. You could get a yubikey with github logo on it for $5, limit 2. They were U2F only, but I sti

Sometimes they do. They did when they launched yubikeys on github. You could get a yubikey with github logo on it for $5, limit 2. They were U2F only, but I still purchased two for the novelty.