SODA BOMBS **********Description:  Very easy to obtain the materials and even easier to make. One can make one within minutes with the correct ingredients. Causes very loud explosion and may shoot out a chunk or chunks of metal. It is built in a match box casing to obtain minimum size and maximum manouverability to explosion sites. No chemicals are needed.  Needed:  A box of soda bulbs (used in those machines to make drinks fizzy. Can be obtained at a supermarket store for about $3 for 10). A box of sparklers (Party section of supermarket $0.70 for 2 boxes of 6) A match box (Your lame if you can't get'em)  Directions:  Remove the gray powder from the sparklers by bending the sparkler and making the powder crack off in little pieces (Save one sparkler for a wick). Collect these pieces and put them into a match box. Put one soda bulb in the powder so that it sits on the top. Close match box and shove a sparkler in one side, making sure the sparkler is touching a bit of the dust. The metal bit of the sparkler should stick out the other end and must be wraped around the match box to hold it in place.  Detonation:  Light the sparkler and run. Occasionally, the nozzle of the soda bulb will burst open and will not cause maximum sound. The explosion of a soda bulb which has actually split down the middle is much greater. When the fire on the wick comes into contact with the powder an "afterburner" effect occurs, which is about 1 foot high. A few seconds later the bulb will explode. There is adequate time for you to get away from it when the sparkler is lit.  Notes:  If these are let off at night, a massive cloud of sparks fly everywhere which are invisible during the day. I found a blown up soda bulb almost a kilometer away from the bombsite once.