Sparklers are small hand-held fireworks that don&#39;t explode. They are among the safest and easiest fireworks to make yourself.It&#39;s easy and inexpensive to make firecrackers yourself. This is a great pyrotechnics project, perfect for do-it-yourself types or persons who can&#39;t find firecrackers where they live.This is a project that involves making red and blue food coloring &#39;fireworks&#39; in a glass of water. It&#39;s a project that is safe and easy enough for younger kids to do, though adults will probably get a kick out of it too.Black snakes are another type of firework that doesn&#39;t explode. Once you light these pyrotechnic devices they push out columns of black &#39;snakes&#39;. This is an easy and safe fireworks project.This is a fun project that only requires a couple of ingredients. When you light the smoke bomb, you&#39;ll get lots of white smoke, plus violet flames.This is the non-cook version of the smoke bomb recipe. Since the ingredients don&#39;t need to be heated, you don&#39;t need to worry about spilling some on the stove and setting off your smoke alarm.<p> Make a tabletop fire tornado or whirlwind that displays red and blue flames. This is great project to see how a vortex forms, plus it&#39;s a nice demonstration of metal salt emission spectra. You can even add white sparks or flames, if you want to go red, white &amp; blue.</p>Colored smoke is easy to make, but you will almost certainly need to order the dye used to make the color from a pyrotechnic hobby shop. The color is produced by vaporizing the dye, not by burning it.Fuses are handy to have around for firecrackers and smoke bombs. These fuses use common household materials.You can adapt the homemade smoke bomb recipe to make a long-lasting fountain firework that shoots purple flames, plus a lot of smoke.You can layer red, white, and blue liquids according to their density. This project is easy and educational.Here&#39;s a recipe for a density column that&#39;s a layered cocktail. It&#39;s perfect for the 4th of July or Memorial Day or pretty much any holiday with a red, white and blue theme. You can add gold liqueur for &#39;fireworks&#39; glitter and you can set the drink on fire.Use electrolysis to change the liquids in a series of beaker from clear-red-clear to red-white-blue. This is an eye-catching chemistry demonstration that is perfect for the 4th of July!Make a waterfall firework that shoots out a river of fire, falling in glittering sparks 20-30 feet. This is an easy project that produces a cool effect.If you&#39;ve got fireworks, you&#39;ve got smoke. Why not collect some of it to shoot smoke rings? This project works with colored water too.This isn&#39;t specifically a science project, but if you make your own fireworks it is important to know how to light them safely.