THE AGE OF THE SPUD!!!
Before I tell you how to build one of these potentially dangerous (if you use them the wrong way)  toys, you must agree to my SMAP (Save My Ass Policy):
 
  1.      You will never point or fire at a person or animal!!
  2.     You will not use your potato gun to intimidate others!
  3.     You will not look in the barrel or chamber while firring!
  4.    You will not build one if it prohibited by law!
  5.   You will not damage any personal property!
  6.     You will not use a potato gun to lights fires!
  7.  
    I agree to the SMAP :-)  Let me In
     
    I do not agree :-(  Let me Leave