Of course! What was I thinking? (II)

S: Tomorrow I have to bring my favorite stuffed animal to school for show and tell. I was thinking of bringing Tom.

Me: Oh really? Your monkey? That's a good choice!

S: No, the frog.

Me: Wait-- I thought the monkey's name was Tom.

S: It is. (goes back to staring out the car window)

Me: ??? Hang on-- they're both called Tom? That sound confusing! How do they know which one you're speaking to when you talk to them?

S: Because the monkey is called Tom with one m and the frog is called Tomm with two m's!