I ordered from P&P when they were quite new. I really like their pet sympathy stamps. In fact, there are some of theirs that aren't labeled as sympathy but I use them as such. For instance, the cat in the window looking at the falling star.
What I also like about theirs is that I can color the pet to match.
Rubber Hedgehog has some pet sympathy stamps--I especially like their rainbow bridge one. It's great for non-furry animals like lizards.
Happiness is being kneaded.
Avatar is my childhood kitty, Berries.