Update: Deal over.

Magna Tiles Freestyle Set, The Original, Award-Winning Magnetic Building Tiles – Link

Amazon has this currently marked down to only $41.99 w/ free shipping!

• The original 3D magnetic building sets that engage young minds by fusing together math, science and creativity
• 40 colorful shapes including 12 “x” shapes, 16 small squares, 6 equilateral triangles, 4 right triangles and 2 “T” shapes
• New “x” shape contains 9 free-moving magnets so you can build in any direction!
• Sparks hours of imaginative free play in children. Anything they can dream, they can create!
• Develops math, science, spatial and tactile skills. Stem approved!
• Safe, durable tiles made with food-grade ABS (BPA free) plastic Free of phthalates and latex
• Ages 3 years and up