One of the most popular Doctor Who commercial promotions of the 70s was run by Weetabix when they offered free cardboard figures of the Doctor and his friends in every packet.
It was so popular, they did it twice with the TV Time Lord and ran similar promotions with Disney characters, Asterix and one for Star Trek The Motion Picture. Here's something I knocked up based on the second Doctor Who promotion. Each box of Weetabix contained four figures - three 'monster' cards and a "Secret Message From Time Lords" (sic). The monster cards could be slotted into one of four game boards that adorned the back of each pack and became forfeits for landing on specific squares during game play.
My little effort follows the same format but with modern EastEnders characters instead... Playing the game makes an exciting alternative to having to watch the series at the moment...
You could also try to decode the secret messages from Mr. Papadopoulos... if you really want.
I did some of these a year or so back to celebrate the 30th anniversary of TV's EastEndErs. They seemed to go down well and since EastEndErs is one of the few TV shows I still watch regularly these days, I thought I'd do some more. Life would be dull otherwise...