Build Your Own 3D Printer Filament Spool Holder with K'NEX

As makers and home users become more involved with 3D printing, it's inevitable that they'll come up with various parts and accessories to make the technology work better for them and serve their needs. Now "manthony7," a maker and 3D printing enthusiast, has built a spool holder to handle 3D printing filament for her Printrbot Simple, and it uses bits and pieces she found around her home. The spool uses parts from the K'NEX toy system, and it looks pretty cool. You can read the whole story here: http://3dprint.com/38281/knex-filament-spool-holder/

Are you intending to build your own spool holder with K'NEX? Have you tweaked the design at all? Let's see your work! Below is a photo of the K'NEX filament spool holder all set up:
http://3dprint.com/wp-content/upload..._-1024x765.jpg