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Nothing. I've never gotten anything in my keyboard other than dust. Ever.

Oh, and my video card died. So now... I talk to you from the awesome power of an FX53 and TNT2 combo. xd

Umm... Did it ever occur to you that maybe you should unplug it and then maybe clean it? Rumour has it that you can put keyboards in the dish washer as long as you turn off the hot water and dry cycles. Just hope you don't have hard water- the minerals can leave behind deposits. Solution: don't wear arousing things when washing your keyboard.

If it was cordless, then you probably wouldn't want to test out the dishwasher technique. Of course, perhaps removing the power source and using a water pick filled with isopropyl alcohol to clean it would be a better option? Or just wait for it to dry and blast the encrusted snot free with canned air. Or, use q-tips and a tooth brush. Just make sure you don't use your tooth brush, unless you like eating boogers.

Did you try using a toothpick? Just make sure you totally DON'T put the toothpick back in the back later.

If that doesn't work, use a cyclotronic inverter employing capacitive reluction on the bridge circuit. That may work. Don't eat that either, though.

If all else fails, you could put the keyboard key side down and take it apart or something. Just make sure you take a digital picture of the keyboard if you can't remember where the keys go if you knocked them astray.

Microscopic parasites? Those whork too. You just want to make sure they don't mutate into something that eats plastic, otherwise you could be out of a keyboard. It happend to a friend of mine, actually.

Air. I say this because just randomly, I woke up one morning (two mornings ago to be exact) and my freaking keyboard was dead. I took it apart and nothing visable was wrong with it. I just assme that the thing got too much air and died.