Make sure your fiction is actually, er, fiction.
For example, wouldn't it be fun to have your character own a supersoft pet whose fur, I don't know, maybe glowed? And was adorable and smooshable and was vegan?
Well, that's not fiction.
In 2000, artist Eduardo Kac had an idea. With the help of geneticist Louis-Marie Houdebine, the green fluorescent protein (GFP) gene from the jellyfish Aequoria victoria was inserted into the genome of a plain white bunny.
So take some of this:
Guess what they got?
|Alba, the glowing bunny! Click here for an actual photo.|