TNT Sulfur Cubes

In the latest minecraft update they added sulfur cubes and something that would be really nice is being able to put tnt inside of it, now What special properties would it have?

> When it bounces with some strength it would create a small explotion capable of breaking 5 dirt blocks or one stone block, it would be a small explotion so its not Over Powered

> Why? It would help the redstone community to break blocks without using a bug without making the bug (tnt dupers) useless!