Where can I get needles?
Some piercing studios are willing to sell needles to the general public (typically at a huge markup), and most larger cities have a tattoo or piercing supply shop. You can also buy hypodermic needles and remove the hub, or you can buy catheter needles and do a reverse insertion. That said, probably the easiest way to get piercing needles is via an online vendor such as BMEshop.com or any one of hundreds of suppliers.
Do I have to use a hollow needle? What about a safety pin?
A hollow needle has proved itself to be an excellent (and non-traumatic) design, but the real reason people use hollow needles is that it makes follow-through (the insertion of the jewelry) a simple process. If you use something like a safety pin, you will be able to make a hole, but getting the jewelry into this hole will be needlessly complicated and will probably do peripheral damage to the piercing.
Where can I get tools?
First of all, most home piercings can be done with nothing more than a needle and jewelry. The simpler your procedure, the less you need to worry about -- and the less places there are for something to go wrong.
However, if you're piercing yourself regularly or in awkward spots, any first aid, sports medicine, or home care supply shop can sell you clamps (although these shops generally stock high-quality German tools which you will pay a premium for). Penningtons are the ones with the triangular heads, and Foerrsters are the ones with the oval heads. You can also buy these clamps from a multitude of online vendors including BMEshop.com.
from
http://www.bmezine.com/diyp.html#Q1-2