Awesome to see so many different things being collected.
Besides all the action figures and anime/manga merch, I collect bookmarks. Since I love to read, I started to collect a lot of bookmarks and buying them when travelling or from artists, have around 500 different ones atm.
Funny thing, I normally don't use a bookmark to mark the books.
When I was little, here, a lot of us collected tazos and I still have mine xD