Ha.
I don't have a Shiva, so no reason for a purple sheath for one,
But
1. The rude old lady's eye after I punched her in it (a rude old lady who tried to cut in front of 30 of us in line at the post office, while waiving her delivery slip standing at the front of the line of 30 people she walked around, seriously, she waved that thing for like 5 minutes as if the post office workers would be hypnotized by it.........luckily for her, and for my criminal record, the post office guys ignored her, and made her go to the back of the line.........the only reason some one did not punch her in the eye for real).
2. The bruise on my fist from punching that old lady in the face (had she actually gotten her package before all 30 of us waiting patiently in line, having pleasant conversations about the weather (over 60 inches of snow in the last two weeks, seriously, with more to come)
3. Bus-EEE
4. A $500 dollar bonus from my boss (which sadly has now become tires on my in law's suv, which had completely bald dangerous tires, and they could not afford new ones, My suggestion was to get all the kids in my wife's family to pitch in, but some how, we ended up paying most of it.....hmmmmm maybe that good deed makes up for me wanting to punch a couple of old people in the face today, during my flight home, and at the post office.........I sense a theme here).
Fun give away, and if I had a shiva rex, I would definitely need a purple sheath for it.