Want to learn some Kung-Fu, or how to be a ninja, or even how to whoop ass with nun chucks? All you have to do is open up an old comic book and check out the ad section. There are (or were, since these ads come from the 50′s and 80′s) tons of companies waiting to teach youth how to deliver a most excellent karate chop.
FYI, while searching the InterWeb to find out how to spell nun chuck (or nunchuck; or nunchuka; or even nunchaku) I found nunchuck.net. Why wouldn’t there be a site dedicated to selling nun chucks and nun chuck accessories.