Wes Adams from Neighbors Grove Wesleyan in Asheboro, NC brings us this air filter stage design.
They used 20x20x1 air filters and lots of black duct tape. They didn’t build all of the blocks into full cubes, but enough of them were to give each structure stability. The tallest point was over 8 feet tall. Total cost was about $150 for the air filters and duct tape. The light was coming from 2 Chauvet LED light strips that they already had at the church.