If the limited edition Transformers rings we showed you the other day were a bit too subtle, perhaps you'll fancy these Frenzy & Rumble Earphones by Takara Tomy instead.

Disguised as a standard pair of white headphones, Frenzy and Rumble can appear on either side of your head in an instant (well, their heads, arms, and legs can, anyway). Fortunately for your brain and skull, both robots have pledged their allegiance to the Decepticons, so the possibility of a battle breaking out as they try to reach each other is incredibly unlikely.