Hello,
I found a fairly interesting website while looking around on CoinMap and other websites called MtSocks. They sell socks (as one might expect) with designs relating to Bitcoin, such as cold wallets and pizza day. I have to agree with what they say on their website, which is that it's a good test for people who haven't tried out the Bitcoin network for an actual payment. This gets people used to how Bitcoin works from a real-life perspective, while at the same time getting a cool product from it. Just like Bitcoin, they have a limited supply on each SKU of sock they release, along with a "Proof of Socks" page to prove that the socks were indeed made by MtSocks. As a side note, I'm realizing now that this seems like I'm sponsored by the company, so I just want to clarify that I have no affiliation with them. Anyways, I left the website below for anybody who wants to give it a look.
https://www.mtsocks.com/