Amazon has this ZOOB BuidlerZ Z-Bricks
For $6.99!!
Add new life and motion to your boring brick creations
Click and pop together to form joints that rotate, limbs that extend, axles that spin and lots more
The possibilities are as endless as your imagination
Includes 12 Z Bricks and 18 colorful ZOOB pieces
Recommended for children 6 years of age and older