There is a mysterious cat artist in Kent UK who is adding black cats to road signs.

 

the stickers are available on Amazon for under 5 dollars.

http://mildlyinteresting-blog.blogspot.com/2021/08/there-is-mysterious-cat-artist-in-kent.html

https://www.kentonline.co.uk/canterbury/news/the-mystery-of-black-cats-on-kent-road-signs-221700/