My mouse Minnie had a little white mouse in her litter that looked JUST like her, only bitty. They'd do everything together: eat at the same time, side by side, go same places in cage together, try to both fit on wheel at once. So of course I had to call the little one Mini-Me.
Then I recently had the (now weaned and nearly mature) young mice sexed by the vet, and it turns out Mini-Me is a boy. :/ So he has been ported to a neighboring cage along with his father Max. Now I have a bachelor mouse pad next to the girls' digs. I think Minnie and Mini-Me miss each other, but they're adapting and they each have company, at least.
Here's Mini-Me eating out of his food dish, which process entails him standing in the middle of it.
I'm dying of Kw00tons over here. ::grin::
And here's the mouse buffet I made, one for each cage.
This is a bit of canned cat food (for a dietary snack/change of pace), arrayed like mouse-pate on two little chopstick rests. Served in this form so they are less inclined to pile litter in the food bowl if they don't like it, which seems to be how they signal "yech! not to my taste!". Which you can see in photo #1: to the left of the food dish is a water dish with carrot bits tossed in, by which I learned they don't like carrots either. Picky little critters.
I am quite enjoying my Meeple. (Mouse People).