Place blueberries in a small bowl, and sprinkle with 1 teaspoon sugar; stir to combine.
Place graham crackers in a resealable bag and gently pound to make crumbs.
Add other teaspoon of sugar to graham cracker crumbs.
Using a pint jar or similarly sized dish, put 1/4 cup yogurt in the bottom.
Sprinkle half of the graham cracker crumbs evenly over yogurt.
Top with another 1/4 cup of yogurt.
Spread half of the blueberries over the yogurt.
Top with 1/4 cup of yogurt.
Top with rainbow sprinkles.
Repeat layering to create second serving.
Eat or refrigerate.