We usually just munch on the yellow pear tomatoes in the garden, but I love putting them in salads with the yellow cherry and grape tomatoes. The colors look great! I think the yellow pear is a little more acidic than the other two, which also balances things out some. I usually add all three to the pan when I'm cooking sliced zucchini. I love the flavor of them cooked!
I just picked the yellow pear, and found two more yellow cherry tomatoes that were ready, so I took a picture of them for you. The pear is a little smaller than normal (it's on the left), but it's the first one, so I wasn't expecting much! Also, they aren't always shaped like this. Many of them have sort of a neck, and then a ball at the bottom.