I am always fascinated with car related accessories and stationary items. I’ve made a post about these in the past.
Carshop Friend is 3rd party Nissan, which makes their items licensed.
When it comes to enthusiasts producing items, I think it’s really cool, even though it is “unofficial”. I know the Japanese brothers are more into the official stuff.
Nonetheless, these are pretty cool. A seller on YAJ by the name of z32na2by2_0210 offers designs for a few cars. But I love the F31 versions.
There is also another design that is slightly different.