In a medium saucepan, combine 2 tbsp (30 mL) creamed coconut, coconut milk, dates, brown sugar and salt. Simmer over low-medium heat, stirring often, until thickened, and the dates are soft, about 15 minutes. Remove from heat and let cool slightly.
Transfer coconut milk mixture to blender and blend on High until smooth, about 1 to 2 minutes. Return to saucepan and cook over medium-low heat, stirring occasionally, until it becomes a thick, almost pudding-like consistency, about 10 to 15 minutes. Remove from heat.
In mixer bowl, combine aquafaba, granulated sugar, vanilla seeds and cream of tartar. Attach wire whisk and mixer bowl to mixer. Set speed to Low and beat for 2 minutes, then set speed to Medium and beat for an additional 2 minutes. Set to highest speed and beat mixture until stiff peaks form, about an additional 4 to 6 minutes.
Using a spatula, carefully fold the remaining 2 tbsp pure creamed coconut into whipped aquafaba meringue.
Assembly: In the bottom of one mason jar, create a layer of crushed graham cracker. (You want them to create a kind of crust on the bottom of the jar). Next, spoon over a layer of coconut milk mixture. Next, add a layer of sliced bananas. Finally, add a layer of whipped aquafaba. Repeat another layer of coconut mixture, banana and whipped aquafaba. Garnish with a few sliced bananas, a dollop of whipped aquafaba and a sprinkle of graham cracker. Repeat with the remaining mason jars and ingredients. Chill in the fridge for at least 1 hour. Serve.