...Anything made by Deer?
I'd like to link that Diablotek 1050W unit that jonnyguru blew up. A 1kW unit that can actually do just past 500W. What a ripoff.
BTW shovenose, that unit isn't horrible. At least it doesn't have that red switch in the back:P
How about the Bestec jg tested that appeared to output its label, but also provided a mobo-killing spike every time it was turned on? There's a pernicious one for you.
And for blowups, there's the string of assorted Huntkey units that hardwaresecrets smoked, or the chokemax that starred in Corsair cinema: http://www.corsair.com/cinema/movie.aspx?id=622747
And, on the one shovenose linked, the little switch is black, but quite visible in the pic.