Board Thread:Tapped Out Help/@comment-25662355-20160215141904/@comment-26561761-20160215152941

Those are the most common prizes, the combined probability to get either of them is around 93%, the other 7% are the good prizes, like the Miniature Nuclear Warhead, Kang Topiary, and Kodos Topiary. Hence you'll end with those most of the time. There is a thread on EA forums about what people got, mostly Debris and Hail Ants Sign, but there are people that got some of the "good prizes as well"