Isaiah Mays from Calvary Temple in St. Charles, Missouri brings us these triangular air filter towers.
They built these triangular stacks out of 20x20x1 air filters from Fleet Farm ($0.57 each). Using black duct tape, they built each box seperately, taping three air filters together in a triangle. Then they stacked each box on top of each other, however high they wanted them. Everyone was surprised at how sturdy the stacks were just taping them together.
They used Venue LED ThinPar64 lights ($99 each) inside of each stack. They cut triangles out of the boxes that the air filters came in, wrapped them in aluminum foil and taped them to the top of each stack to reflect the light back.
They used a Enttec Open DMX USB interface ($70) and Freestyler DMX (free download) to control the lighting. The only problem they ran into was that the lights were 3-pin DMX and the Enttec interface was a 5-pin, so they had to buy a 3-pin to 5-pin adapter.
The overall cost was around $1100.
Filters – http://www.fleetfarm.com/detail/aaf-stratadensity-fiberglass-furnace-filters/0000000046493
Lights – http://www.guitarcenter.com/Venue-Thinpar64-10mm-LED-Lightweight-Par-Light-106866171-i1954710.gc
USB to DMX Interface – http://www.enttec.com/?main_menu=Products&pn=70303
Cables – http://www.monoprice.com/Product?c_id=115&cp_id=11509&cs_id=1150902&p_id=601603&seq=1&format=2
3 to 5-pin Converter – http://www.musiciansfriend.com/accessories/american-dj-5-pin-male-xlr-to-3-pin-female-xlr-turnaround-dmx-cable
Freestyler – http://users.telenet.be/freestylerdmx/