Ok here is my input:

Those stickers are very common and I see them in almost all the pet stores I go to over here. Sides, my parents never lets me put stickers on the car or anything, so they really aren't anything I'd buy personally.

The bone-rack is great!! I really liked that one, infact I made a mini rack like that when I was in school in 4th grade to hang my necklaces on! So I'd probably get something like that, perfect to hang dog things on!!

The welcome sign is ok, but I would prefer it if it was a colored dog instead of just boring black silhouette. I think it looks a little unproportioned too, but that could just be my eyes!

The greyhound rack is nice too, and if you are a greyhound fan I'm sure you'd buy it!! Not as nice as the bone rack in my opinion, but still pretty neat.

Oki, hope that helped some atleast