Amazon: K’Nex Sale 50-60% off!!! October 9, 2013 by MidgetMomma Leave a Comment Woohoo! Perfect to get your holiday shopping in gear!! Amazon has a Daily Deal today with 50% off K’Nex sets! Starting under $10 this is a total steal!! This is an Awesome deal so head on over here to get yours! They have 22 different sets to pick from!!!