Remove blocks with commands

I would like to know if there is a plugin that makes you able to just run a command, for example /blockremove piston world which would then remove all pistons from the "world".
If not, could this be possible to be made? There are sometimes certain items I would like to remove from the whole map which the players have placed, but doing that 1 by 1 is pretty slow and I simply can not find every of them.

Is there any plugin that could possibly have this kind of feature?

 

You could use WorldEdit, a cuboid editing plugin, to select a large portion of the map, and then replacing e.g. 89 with 0.

 

I have WorldEdit and WorldGuard. Never thought about that, might give it a try.

 

With WorldEdit, do these commands while standing near the center of your map:

Code:

//removenear 34 500
//removenear 33 500
//removenear 29 500

That removes all piston heads, pistons, and sticky pistons within a 500 block radius.