I been looking everywhere and even using google to try and search for a wearable katana accessory. Which I find no luck. Does anyone know where I can find this? Preferably a dl site doesn't use adfly. The type I am looking for is where the sim can wear it on their side and back.

Hello! Here is a set that includes a katana worn on the back:
https://happylifesims.tumblr.com/po...online-red-robe

For a katana worn on the side, this is my favorite:
https://love4sims4.tumblr.com/post/...-download-3-ver
Unfortunately, the download link from the original post doesn't work, but you can still download it here (it's the fourth one down): https://simfileshare.net/folder/31114/

Here's a group of 3 katanas worn on the side: https://karzalee.wixsite.com/studio.../10/zoro-outfit

Hope these work!