Do artists make fan merchs of manhwa(s) characters? Do you buy them?

only the popular ones that sell. I went to a con once and got myself a Cale (from TOTCF) keychain and there were a lot of kim dokja and yoo junghyuk merch. There are also artists that do art comms on the spot, I bought myself a piece of rainbow city fanart from one of them teehee

oh i see. I was wondering if I can get some. because I usually only see mainstream animes from artist booths.