If you are looking for a gift idea which will provide a little bit of challenge for your kids, ages 5 and up, take a look at the Oblo Puzzle Sphere by Great Circle Works.
Description: Oblo Puzzle Spheres, an award-winning series of 4, nesting spheres come apart and go back together, but not without a certain amount of trial and error and creative problem solving, both great exercises to build your child’s brain and get her ready for learning. As children use both of their hands to manipulate the OBLO they are developing their writing and drawing skills. The Oblo Puzzle Sphere is also a wonderful way to introduce young minds to simple geometry. This 3.25-inch-diameter, multi-colored puzzle toy also makes a great office manipulative to get those brain cells firing at top speed. Ages 5 & up.
Watch Todd talk about the Oblo Puzzle Sphere and then do a little demo of how it works.