MIT "happy board" like shield for arduino
It sounds like you're looking for the Board of Education Shield (for Arduino) 


  Key Features:
  
  
  17 row x 2 column breadboard for convenient circuit-building  
  Headers for power (Vin, 5 V, 3.3 V) Ground, Digital I/O and Analog In
  are brought adjacent to the breadboard    
  Onboard 5 V regulator supplies up to 1 A, great for robotics and
  animatronics applications  
  Onboard 3.3 V regulator supplies up to 200 mA for project circuits and
  accessories, such as XBee modules  
  4 servo ports with power selection jumper for regulated 5 V or Vin
  (Arduino's supply voltage)  
  3-position power switch for power header only or power header + servo
  ports     Board reset button resets the Arduino  
  Supply indicator LEDs for breadboard and servo power