Teachers are going crazy over the Merge Cube at Walmart.  You can find them in the electronics department.  Explore Augmented Reality with the Merge Cube on clearance for $1 at your local Walmart.  The regular cost can vary between $5 to $15.  Search #MergeCube, #ARVRinEDU #AR #MergeCubeEDU #EdTech on Twitter and follow @MergeVR.  Check here to see if you can find any near you.