The Sabian Quiet Tone cymbal set is the answer to low volume practicing. These cymbals have the feel and the sound of regular cymbals but with an 85% volume reduction. They all have sustain and respond to all volume levels. Go ahead and hit it as hard as you want!
Disclaimer--They are not indestructible.
This is from the Sabian website:
"Created specifically for practice and low volume sessions, SABIAN’s Quiet Tone Practice Cymbals are designed to respond and sustain like traditional cymbals, so drummers won’t have to change the way they play. Their true-to-life response is clear and natural right down to the crisp sounding bell. Quiet Tone Practice Cymbals are manufactured from a tough, durable alloy that won’t dent or break, making them the best choice in low-volume cymbals. The QTPC503 includes 14″ Hats, 16″ Crash and 20″ Ride."
Well, I'm convinced!! Get yourself a set today and be the quietest drummer on the block! Wait?! Is that a good thing?