Check out this 1:1 scale Doctor Who Cyberman Voice Changer Mask.

This Voice Changer features speech, sound effects, and lights. It requires 3 AA batteries and is for kids age 5 and older or for real Dr. Who fans. Play.com sells the Voice Changer Mask for £29.99 with free shipping.

If your Dr. Who DVD selection is incomplete head over to Amazon for Doctor Who box sets.

If you perfer Transformers, there is also a Transformers: Optimus Prime Helmet Voice Changer available for £24.99 on Play.com.