This idea was stolen from Emerald City Smoothie the smoothie restaurant.
These are SO GOOD

I can never get enough of these.
"The Builder"
-1 banana
-Soymilk (however thick or think you want the shake)
-Some sugar-free chocolate vegan ice cream
-A couple spoonfuls of peanut butter
-1 scoop chocolate protein (or non-flavored, with some cocoa powder and stevia sweetener)
Sugar-free Vegan Chocolate Ice Cream
-1 cup soy milk
-2 cups liquid soy creamer
-1/4 cup cocoa powder
-1/2 cup vegan unsweetened chocolate chips (or naturally sweetened)
-2 tablespoons arrowroot powder
-3-5 tablespoons stevia sweetener powder
On the side in a bowl mix 1/4 cup soymilk and the arrowroot powder till the arrowroot dissolves
Combine the rest of the ingredients in a pot under medium heat until the chocolate chips melt. Adjust the sweetness of the ice cream with how much stevia you put in it, some people like a darker chocolate and some like a sweeter one. Then bring the liquid to a boil. Remove it from the stove as soon as it boils and stir while adding the rest of the soymilk and arrowroot (this will thicken it).
Let the mixture cool down for about an hour outside the fridge, then put it in the fridge to cool down for about 3 hours. Then WALLA it's ready to be put in an ice cream maker!