I used to have a mouse like this branded "twin dolphin" and it had two dolphins sloshing around in there.
1
0
0
The weirdest are these type of mice with adverts for medicine
1
0
1
I used to work for a medical supply company and we once got a few boxes of these type of mice to include with orders which contained their product. The mice had a floating pill in yellow oil instead of blue.

We ended up chucking them all because no one ordered their stuff.
1
0
1