You should totally make Boo Berry cereal out of 'em. They only sell that stuff near Halloween, so what else are you gonna do to get your Boo Berry fix for the rest of the year?
Oops, missed that, ok, make blueberry muffins and send some my way 
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I know this is too late for the OP but for my own education, can blueberries effectively be dried at home? Can you do this in a low oven or must you use a dehydrator? Is this just beyond the reach of the home cook?
Just for future reference, here’s my blueberry muffin recipe.
1 cup flour
1 cup quick or old fashioned oats
1/4 cup sugar
1 Tbsp baking powder
1/2 tsp cinnamon
1/2 tsp salt
1 cup milk
1 egg
3 Tbsp vegetable oil
1 cup blueberries, rinsed and drained
Mix all the dry ingredients together in a medium sized bowl. In a separate bowl combine milk, egg, and oil, then add to dry ingredients and mix. Fold in 1 cup blueberries.
Spray a muffin tin with cooking spray, fill cups about 3/4 full. Bake at 425° for 20 minutes. Makes about a dozen muffins.