From the Kickstarter comments:

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Hi guys! We started looking into making a different collector's edition once we figured out we couldn't do the ouija board (there is a trademark problem with that) and I think we announced that during the campaign. We wanted to make something very special for our higher level backers off high value. We started looking at the mugs but the results were disappointing and eventually we evolved towards the (in my eyes very very cool) figurine. An incredible amount of work went into making sure everything is of super-high quality and we're very proud of it. Obviously if you are discontent and really wanted to get that mug, we will reimburse you. All you need to do is send a message to kickstarter@larian.com.