[T-Shirt] Official or not ?

Hello,

on internet i found these OpenBSD products :

https://www.redbubble.com/people/rimek/works/25325956-openbsd-crypto?p=t-shirt&rbs=8aa640f6-9ca5-4a0e-a162-1cbd71d04780&size=extra_large&style=mhoodie

I did not find them on the tshirt page of OpenBSD :

https://www.openbsd.org/tshirts.html


I think they are not official, however does OpenBSD foundation receives
retribution for them ?

In poarallèle i do not find anymore mugs or base ball's caps. Goodies
are stopped ?

Thanks.