I (apparently as the story goes) grew up on the "love" dog biscuits (I don't know if you can even still buy them - they used to be shaped in hearts, bones etc). Apparently it was one for my dog and 2 or 3 for me so think he will have more than just a shiny coat!!
I remember those, the heart ones were red, the bones were a cream, and I think that the triangles were green.