Hi,
There did not seem to be one great place, except for this forum, for people to post Cardano Merchandise for sale or to go look up products people are interested in purchasing. So I put together a subreddit and a telegram channel for people to post their products or look up products they are interested in buying.
Reddit: https://www.reddit.com/r/CardanoSales/
Telegram: https://t.me/CardanoSales
I am going to need some moderators for these outlets and willing to make some new admins. Let me know if you are interested.