Calculators come in all shapes and sizes these days. One of the geekiest and neatest may just be this Lego calculator. It could help you count all of the Lego pieces that you have stored in that dumpster next to the garage or count how many bricks it will take to make a cool statue.
This one comes in four colors, red, blue, green and black. Not sure if you can actually connect your Lego pieces to this though and get creative. The building block calculator will be available in August, but you can pre-order it now for $27.