Mirror Local

Hello,

I'm looking for a way or script to mirror localy multiple selected objects.
A mirror tool that works more or less as the move/scale/rotate tool set on the local setting.

E.g. in practice: I have a set of textured cubes that I select and copy/mirror.
The problem is that the textures are inverted also. so I need to mirror each cube seperatly along its axis to maintain its position.
I have to do this more than a 100times.

Is their a way to automate this process?
Thanks a lot for your help!