I fed one of the Valentine smiley snacks to my pet, and all it did was take it's hunger down a level, and make it delighted, I believe, or whatever the highest level of happiness is.

As for capsules, I bought several of the Valentines capsules...I wanted a code, but finally gave up, lol....I got almost every one of the valentine's items out of them...except for the dress, the snack, and the background. I am not saying that you cannot get them, just that I didn't....Also recieved the harp from this....

I got the Silver Neopets Logo Charm from redeeming a silver $25 neocash card and the golden plushie set from the Gold one....As far as the bonus item for redeeming 4 cards...All I got was a Pear Lollipop...*pouts*....I sure hope that all my rambling helps....*S*