Servo Motor

 ;             ATtiny12
 ;              --v--
 ;    rst pb5 -|     |- vcc
 ;     pi pb3 -|     |- pb2 sck  servo
 ;     po pb4 -|     |- pb1 miso
 ;        gnd -|     |- pb0 mosi
 ;              -----  
 ;               8MHz      

I can find servo motors for $10 a piece at my local hobby store. My most recent purchase was a ST47 by JR.

• http://google.com/search?q=ST47+servo
• http://google.com/search?q=jsp20050
• http://froogle.google.com/froogle?q=jsp20050