The Magformers were the big hit in my office on delivery day! This smaller 62-piece kit comes with plastic-encased magnets in various shapes. The kit also includes a small design workbook that shows the layout of the pieces to build 3-D objects.
Hint: If you are following a design, lay all of the pieces out and then grab a center piece and lift upwards to build the object. (Let gravity do the work for you instead of trying to lift each row of pieces upward.)
Download Idea Booklets:
http://www.magformers.com/idea-booklets.html