I really like the paw print. I would do actual paw print size and I would do:
TJ's Paw Print
and
Roxy's Paw Print
I like the wrist idea. I have the 'strength' symbol on my right (outside) wrist. So, I could put the Paw Prints on my inside right wrist
...I also have a tattoo on both ring fingers (the palm side)