Some people may think of cymbals as accenting a drum kit, but in fact, they can be just as important to your sound as your drums are. As a drummer, the timekeeper of the band, you are usually striking the hihat or ride cymbal more than any other part of your kit, and where would you be without a crash cymbal? Not in a band is the answer.
There is no way around it; cymbals can make or "break" (lame pun intended) your career as a drummer. Cymbal care not only keeps your cymbals looking spiffy, but helps reduce the chance of them cracking and breaking. For tips on cymbal care, check out this instructable
But if you want to try to fix your cracked cymbal or do something else with it (like make an effects cymbal), hopefully this instructable will give you some good ideas on how to do so.
Also check out some of my other drum instructables:Drum TuningCymbal PolishingEffects Snare Drum