Before realising hardware shops sell drill bits specifically for drilling glass, I tried filling it with sand and tapping away at the area, and heating it up then pushing a piece of copper piping through. Heh, don't bother with either of those methods. In fact, learn from my mistakes and avoid them.
hee...hee. I've successfully drilled holes in bottles with a regular masonry bit...and lots of care %) Once upon a time, the old Galliano bong was a favorite. Success for a novice depended on whether the little man was on the bottle. His head was in about the right spot on the large bottle
~~~~~~~~~Method 1~~~~~~~~~~~~~
If you need a glass pipe to smoke, then please don't use dodgy things like a light bulb, or foil for that matter.
Know what internal/external diameter you're after, then go to any scientific supplier - [read: no suspicion associated] and purchase a length of glass tubing. If you're
really paranoid then ring a major supplier and use a credit card. Home brew shops may also have tubing. Make sure it's pyrex glass or similar (borosilicate) i.e. can be heated and cooled quickly without breaking.
All you then need is a
good heat source ( air/propane, air/acetylene or oxy/ acetylene)
Any person in the immediate area must WEAR EYE PROTECTION and the glass craftsman should wear WELDER'S GLOVES,
Always be aware/ careful of HOT GLASS.
It always seems to LOOK cooler than it actually is
Until the technique is learned, avoid possible burns by startiing with a tube a little over 1/2 meter in length. Heat one end in a gas flame, turning the tube (slowly) with your fingers. As the glass softens, it will seal the end. It may take a bit of practice, but it's simple enough to do. When cool enough, the seal can be tested by pressurizing with blowing.
The next bit can be a bit tricky, but only until you're accustomed to the properties of molten glass. Heat the sealed end ~3 cm from the tip. Rotate the tube as it's heated. Once it takes on an orange-red glow, gently blow through the tube while turning fast (use a mouth piece extension if it's too hot . BE CAREFUL!!) As air is blown, the tube will expand around the hot softened area. Be slow, experiment with moving in and out of the flame and don't expand it beyond ~ twice the original diameter.
If you don't want a nice evenly round bulb, it's maybe easier to heat and let gravity do the job. A small hole can be placed in the top by heating again and simply poking a hot nail though the softened tube.
Once the shape is obtained, determine length required, use a glass cutter - scratch and snap. Details are elsewhere on this forum.
~~~~~~~Method 2~~~~~~~~~~~~~~~
Now if all that seems a trifle too hard, then I'll tell of another method I saw someone use, again it will ATTRACT NO SUSPICION if purchasing the following:
1 x 10mL volumetric flask** (no stopper needed - but one will prolly come with it)
1 x ground glass stoppered 1mL pipette (to fit flask)
The two pieces fit perfectly together with your crystal in the flask. Heat gently and I'm sure the rest will come naturally 8(
Volumetric flasks **(often packaged/ purchased in pairs) have nothing to do with drugs, they are not restricted and are used extensively to produce standard strength solutions for testing comparisons ( to produce a standard curve in analytical procedures). A simple example would be to make up a standard solution for testing the accuracy of a colour test.
My colleagues and I have just designed a test for total and available chlorine (as C
lO2) in water. No rocket science required, but without volumetric flasks it would have been a daunting task, to say the least.
~~~~~~~~~~Method 3 (best)~~~~~~~~~~~~~~
Use another, less concentrated form of administration.
Sorry but I feel I can't give the above instructions without a comment from my conscience.