Then again, just one inflatable Dalek might be able to destroy five million inflatable Cybermen...
The Daleks, perhaps Doctor Who's deadliest foes, are looking less than threatening as 30-inch and 47-inch inflatable collectibles. In fact, I doubt that Underground Toys' Inflatable Daleks will be taking over much of anything even if they do manage to invade (and occupy) your homes although your wallet might be a casualty.
The Inflatable Daleks seem to come in two sizes although the larger is only available in red. At 47-inches, he's still not quite to scale with an actual Dalek but he comes reasonably close. The smaller 30-inch Daleks are available in red, blue, yellow, or white. The overall level of quality between both sizes looks similar although the larger one (pictured) has a visibly nicer base.
While I love the look of these, I just honestly don't think I have the space. However, if you have the room for a long-term occupation then you might consider pre-ordering either the large Red for US$95 or one of the smaller ones for US$60. They're scheduled for an October release.