I know what you’re thinking: canned blueberry filling? Trust me on this one; it’s simple, it’s tasty, and the smooth texture just works. Some folks don’t care for Cool Whip, but it works; you run the risk of too much liquid consistency in hand-whipped cream or even the Ready Whip type spray cans resulting in a loose pie filling that won't set. For transporting this dish, cut bamboo skewers into same-size lengths (about 4 inches) and stick strategically into the pie with the blunt ends up. Then simply cover with plastic wrap and the skewers will keep the wrap from sticking to the top of the pie.