Penny doesn't hold any world records, which I think is a rather good thing, because I like her just as she is - maybe fame would go to her head, as it seems to do for humans.
However, when browsing the web I read at Canis online,a German blog, that Augie, a golden retriever,holds the world record for having tennis balls in the mouth - five balls. Of course, I had to see that for myself, so I went to Guinness World Records and saw a picture of her performing that feat.
Equally amazing was the record for the fastest time that a dog has unwound a car window - 11.34 seconds. Thank goodness Penny doesn't know how to do that.