Two birds with one stone right?
Anyway, the possible freebies are PVC character figures of Optimus Prime, Soundwave, Shockwave, Wheeljack, Bumblebee, Jazz, Astrotrain, Megatron, and Starscream. Starscream, Megs and Prime all have 'gold' versions as well.
And for you micron completists, repaints of the Giant Planet minicon team... Deep Dive in green camo called, Seawave, and a repaint of Longarm called Craydon are available as well.
You can see the promotional page for yourself here.
