If you're old enough to go into a headshop, you're old enough to get one off the 'net. Remember, it's not paraphernalia until it's used.

However, if you want to go to the headshop anyway, you gotta go through a whole fucked up process to do it.

Okay, you grab your keys, your (doctored?) driver's license, and 100 dollars. Then, you go outside (locking your front door, of course), unlock your car, get in, shut the door, put the key in the ignition, start the car, back out of your driveway, stop and make sure no cars are coming that might kill you, get on the road, stop at the next stop sign/light...
...
...
...Explore your town, especially the commercial areas, for shops with interesting names...
Find one that has an interesting name, park your car, get out, lock it, walk inside, see if it's a headshop, if it is, spend your 100$. If not, unlock your car, get in, shut the door, put the key in the ignition, start the car, get back on the road (at the right time, of course)...
...
...Rinse and repeat until you find a headshop.