K'nex combined with LED's to create awsome Orbs. Answered
I think this is a great example of the neverending potential of knex.
This photographer set about making rotating led lit orbs. He then used a long exposure on his camera to create the amazing pictures you see here.
I think for a simple building method, for a non permanent project, knex is one of the best options, and greatly under appreciated!
Check out his full Flickr Set.