My favorite is something I mix myself, and to anyone who is interested in making it too, here is the (very) generalized instructions and ingredients, seeing as I've never used precise measurements:
You will need:
1 part Heavy Whipping Cream
3-4 parts Orange Soda
And a small amount of Vanilla Syrup
Now, you take your average large glass and put in your 1 part Heavy Whipping Cream, then add 3 to 4 parts of your favorite Orange Soda, depending on just how creamy you want the final taste and texture to be. Then, you add just a little Vanilla Syrup, stir well, and serve.
Its almost addictive, if you happen to like Orange and Creme in any form.