What are other good uses for hypodermic needles?

Issue
I listed a couple of ideas on another question, but I think this topic begs for its own question. Here are some good ones: Long range sniper squirt gun; dart; poison filled dart; hobby glue or paint gun;
pimple popper and alcohol injector; tongue sucker (if you pull off the needle head first); and general small volume liquid transfer pump. Have you got any good ones?

Best Tip

Once I used my insulin needles to inject pure grain alcohol into fruit so we could sneak the alcohol into Derby.

Others
Hey you took all the good answers!! That's not fair!! I'm telling my mommy!! LMAO!! How about a nitrous oxide pump!

Well I tried at least to help you out. Thank you!! Where's my frikkin shark with it's " laser" beam strapped to it's head?? LOL!!
Squirt gun!
Good grief you left out the oldest one in the book. Fishermen use them for inflating earthworms.
This is a serious issue, and needles that are meant for diabetes should be used for that. It is illegal to use needles for anything other than there intended use
http://shopping.yahoo.com/search?p=hypod...

http://www.terumo-europe.com/_hospi_prod...

Hypodermic Needles on Gas Pumps, Pay Phones, etc.
My name is Captain Abraham Sands of the Jacksonville, Florida Police Department. I have been asked by state and local authorities to write this email in order to get the word out to car drivers of a very dangerous prank that is occurring in numerous states.

Some person or persons have been affixing hypodermic needles to the underside of gas pump handles. These needles appear to be infected with HIV positive blood. In the Jacksonville area alone there have been 17 cases of people being stuck by these needles over the past five months.

We have verified reports of at least 12 others in various states around the country. It is believed that these may be copycat incidents due to someone reading about the crimes or seeing them reported on the television. At this point no one has been arrested and catching the perpetrator(s) has become our top priority.

Shockingly, of the 17 people who where stuck, eight have tested HIV positive and because of the nature of the disease, the others could test positive in a couple years.

Evidently the consumers go to fill their car with gas, and when picking up the pump handle get stuck with the infected needle. IT IS IMPERATIVE TO CAREFULLY CHECK THE HANDLE of the gas pump each time you use one. LOOK AT EVERY SURFACE YOUR HAND MAY TOUCH, INCLUDING UNDER THE HANDLE.

If you do find a needle affixed to one, immediately contact your local police department so they can collect the evidence.

PLEASE HELP US BY MAINTAINING A VIGILANCE. YOU MAY WISH TO INFORM ANYONE YOU KNOW WHO DRIVES. THE MORE PEOPLE WHO KNOW OF THIS THE BETTER PROTECTED WE CAN ALL BE.

Variations:
Hypodermic needles have been found in the change slots of pay phones.
Hypodermic needles have been found stuck in the coushins of movie theater seats.

you can read this article :

A hypodermic needle is a hollow needle commonly used with a syringe to inject substances into the body. They may also be used to take liquid samples from the body, for example taking blood from a vein in venipuncture.

A hypodermic needle is used when the substance would not be reliably absorbed by the digestive system (as is the case with insulin and many other drugs), when the substance in question would harm the liver if made to pass through the digestive system (as with testosterone), or if the substance needs to be instantly delivered into the body. The substance can be injected just under the skin (subcutaneous injection), into a muscle (intramuscular injection), or directly into the bloodstream (intravenous injection). Less commonly, hypodermic needles are used for injection into joints (intra-articular injection), cerebrospinal fluid (spinal injection- intrathecal) or into the skin itself (intradermal injection).

Virtually all current hypodermic needles and their associated syringes are designed for single use because they are hard to decontaminate and require sharpening after repeat use. Re-using or sharing needles can transmit many blood-borne diseases including HIV and hepatitis C. Needles are normally used only once and disposed of in a sharps container. Difficult to reuse syringes, syringes that have automatic mechanisms to prevent reuse, have been developed to stop the spread of disease in medical settings, examples of which include medical personnel exposure and immunizations. [1]

Normally made of a stainless steel tube drawn through progressively smaller dies to make the needle, the end is bevelled to create a sharp pointed tip. This allows the needle to easily penetrate the skin. When a hypodermic needle is inserted, the bevel should be facing upwards.

The diameter of the needle is indicated by the needle gauge. Various needle lengths are available for any given gauge. There are a number of systems for gauging needles, including the Stubs Needle Gauge, and the French Catheter Scale. Needles in common medical use range from 7 gauge (the largest) to 33 (the smallest) on the Stubs scale. Twenty-one gauge needles are most commonly used for drawing blood. Although reusable needles remain useful for some scientific applications, disposable needles are far more common in medicine. Disposable needles are embedded in a plastic or aluminum hub that attaches to the syringe barrel by means of a press-fit (Luer) or twist-on (Luer-lock) fitting.

It is estimated that about 10% of the population may have a phobia of needles (Trypanophobia), mostly children
Sometimes my boyfriend really annoys me so I whack a bit of insulin in to his system and put him in a coma for a few hours - just enough to do the ironing in peace you know.