The  relase  them  randomly  and  you  can  find  them  from  Youtube  content  creaters  or  we  post  them  on  here

tks for your help

As frankieray mentioned

they appear around certain events/seasons/themes 

usually they first appear in social media platforms such as fb/insta/discord 

kind regards

ugh i dont do youtube and can never find them on discord or any social media

Right here on the forum, pinned near the top of discussions. When there's a new one, someone usually posts it there within an hour.