Someone requested a mod that replaces the cat with Luna from Sailor Moon. Here is my best rendition:

 
 

Download:

Download Here on the Nexus (just click the file name or "download manually")


Installation Instructions:

• Download the mod
• Extract the archive
• Go to Stardew Valley/Content/Animals 
• Replace the cat.xnb file with the one from the download
  

*You can easily create a backup of your original cat.xnb file by renaming it to something silly. I do cat.xnbOLD for myself.

Credit: Lots of thanks to @Korokos for giving me permission to recolor their sprite from the Longhair Cats mod (which is vastly superior to the base game cat!)