Friday, August 2 is known across the land as Ice Cream Sandwich Day (except for, perhaps, the cows).Here in Huntsville, Sci-Quest wants its visitors to have a hand in making Ice Cream Sandwich Day something truly special. From 10:30 a.m. to 2:30 p.m. August 2, visitors will be able to create their own ice cream flavor and then make sandwiches from the batch, with the help of dry ice.If that...