There was a kickstarter for a Never Ending Slinky Machine, if you want a more portable thing that you could put on your desktop. https://www.youtube.com/watch?

There was a kickstarter for a Never Ending Slinky Machine, if you want a more portable thing that you could put on your desktop. https://www.youtube.com/watch?v=mISz-_ahvh4 https://www.youtube.com/watch?v=mISz-_ahvh4 But their website (creatables.co) seems down at the moment.