What does a pet drop look like?

[Kuero]

Kuero is correct, looks like a glowing blue sparkled rat.

Albino Bats still drop, drops on Morhaven District , missions 1 and 3.
And found albino bats recently (sept 1st 2013), btw bats dropped after i destroyed a cardboard box.
So also destroy the destructables that usually gives u money or a low level gem if u wanna find bats.
Btw bats are very difficult to find. Farming for 15 months now (almost every day) and in that period found bats twice.
(Sorry dont wanna discourage u)

Mine also dropped from a box, I'm still remembering really good on it because I almost made the wrong decision. It was the last destructible item in morhaven rooftops run and I was so far away already that I first was too lazy to run back for and destroy it, then after killing the boss I couldn't resist my perfectionism anymore and went back for the box. It was a smart move because the bats dropped from that box

[doomdoomdoom]

Mine also dropped from a box, I'm still remembering really good on it because I almost made the wrong decision. It was the last destructible item in morhaven rooftops run and I was so far away already that I first was too lazy to run back for and destroy it, then after killing the boss I couldn't resist my perfectionism anymore and went back for the box. It was a smart move because the bats dropped from that box

Good to know that you can still get them even after you kill the boss. No more stressing out if I accidentally run the wrong way in a map and kill the boss too soon...cuz I guess it doesn't really matter what order you do it in....as long as you go back to the rest of the map.

[ChilledBlood]

Mine also dropped from a box, I'm still remembering really good on it because I almost made the wrong decision. It was the last destructible item in morhaven rooftops run and I was so far away already that I first was too lazy to run back for and destroy it, then after killing the boss I couldn't resist my perfectionism anymore and went back for the box. It was a smart move because the bats dropped from that box

I don't think drops are predetermined when you join a game, I believe its a code roll every time you kill or destroy something.
So any box or enemy you leave behind is not potentially holding your good drop, rather they just are another lottery ticket.