Cake Batter Dip

I found this great recipe on pinterest. It came from Tasty Kitchen originally. This is so simple. So beyond simple. 1 box cake mix (any flavor) 1.5 cups plain yogurt 2 cups cool whip I used a white cake mix but want to try chocolate this weekend. I used low fat yogurt and fat free cool-whip. I did not find animal crackers so I used graham crackers. I will let you know how chocolate comes out. What other flavors should I try. Pamela