Magnets :  The Magnet Source
  607 S. Gilbert St.
  Castle Rock, CO  80104
  HTTP://magnetsource.com
            /alnicocow.htm
  Phone  303-688-3966
 
Alnico Cow Pills
 

Coils :  Renco Electronics , Inc.
  595 International Place
  Rockledge, FL  32955 – 4200
  HTTP://www.rencousa.com
  Phone 800-645-5828

  # RL-1239-5600

  Mouser Electronics
  1000 N. Main St
  Mansfield, TX  76063-1511
  HTTP://www.mouser.com

  Phone 800-633-2246 – educational line

  2 – AA  battery holder #12BH324
  Red  “super bright”    led  #512-MV7042
  Green “super bright”  led  #512-MV7441

PVC pipe from hardware store
AA Batteries  --  Sams Club

Light Bulbs and sockets  -- cut from Christmas Light string  3V bulbs