A soft luminescent form gently sways in the air. As it slowly turns, its glowing color shifts from blue to an enchanting violet. Nearby, pale green compostable plastic wedding dresses gives comment to the newfound disposability of what used to be a family heirloom. Watching and waiting on the floor is an internally illuminated octopus made from shaped PVC pipe. These delightful works are just part of the bounty of intriguing three-dimensional constructions awaiting you now through May 25 at the Bucktown Center for the Arts in downtown Davenport.