Posted By:
Al C.risafulliI slice right through the top half with a $20 Dremel tool, then pry the slab open with a flathead screwdriver. Takes about ten seconds, and I'm never worried about slicing open my hand or getting a shard of plastic in the eye.
Of course I do wear safety goggles when I do it, because sometimes the rotary blade on the tool breaks. I look like a complete nerd, with all this hardware on my face and a baseball card in my hand, but it works. 
-Al