Coffee cup conundrum

I've noticed on lake weekends we end up playing this repetitive morning game when it's coffee time. 

Is this my coffee?

Whose cup is this?

(takes sip) This isn't my coffee!

I guess that's inevitable when you buy a plate set that includes eight matching coffee cups. So I decided to remedy this issue by purchasing a variety of lake themed coffee mugs to keep us all straight.

These are a few of the ones I ordered on Etsy. I especially like the last one!