With Hasbro blitzing the market with merchandise this year, compared to the previous two movies, the cross-promotions are likely to be more than usual as well.
In Singapore, a bank has released its promotion for online transactions to put people in the draw for movie tickets and USB character sticks.
Each month qualifies for a different USB character stick...

April - Optimus
May - Drift
June - Bumblebee
July - Lockdown