EAGLE – There’s something new on this weekend’s Flight Days schedule. For the first time, competitive cup stacking (called sport or speed stacking) will be a part of Saturday’s activities.In sport ...

Marvel at the ease with which Nellie the sea otter stacks this trio of cups — a task that lesser animals would merely paw at, in half-hearted resignation. Do not attempt to pull one over on Nellie.

Also known as sport stacking or speed stacking, cup stacking is a sport where people rapidly stack and collapse (called down stacking) pyramids of plastic cups. The cups approved for competition by ...