To tell u the truth, Acid bombs are dangerous. But I tell u how to make them anyways. You need a small water bottle like one of those normal Zephyrhills water bottles ( Not one of those baby bottles). Then you get small pieces of aluminum foil, wrap them around your finger one by one and twiste both ends of the foil so that there is a air pocket between it (like candy). Put about 6 to 8 foils in the bottle. Then you need Pool acid (Muriatic Acid). Get in a safe spot and pour some acid in the bottle just alittle over 1/4 of the bottle. Close the bottle/ pUt the cap on the bottle and shack it alittle (I really mean alittle) then throw it. PLease don't throw it near someone you hate or any animals. These things are dangerous but fun when you are safe. Never go near the botlle after throwing it. In about 5 to 20 seconds, "BOOM!!!." Its really loud, might sound like a terrorist attack so be carefull ... Please "PLAY IT SAFE" and "DON"T GET HURT!!."