Mercury
I used to have about 20 cm³ of mercury which I had liberated from some old tilt switches. It was part of my chemistry set, and I used to love playing with it. Look! Liquid metal! No liquid should be that heavy.

Now the rest of my chemistry set was a big box full of junk - unwashed test tubes, crusty precipitates, unlabelled vials, the works. My dad threw the whole lot away when I went to University, including the mercury. It's in some dump now, contaminating the ground water.
( Amish Information Systems hates misplaced, commas, Fri 15 Aug 2008, 12:30, 4 replies)

I was recently in Spain
and my friend bought a small vial of Mercury from the tourst gift shop in Nerja! I was sure there was some sort of ban on selling it. To be fair it was probably only .5cm^3, but nothing to stop you buying lots of bottles.

It's amazingly weird stuff.
( LemonEntryMyDearWatson This time, Moriarty, the hand is on the other foot, Fri 15 Aug 2008, 12:46, closed)

I've got loads
When I moved into my new house, the old owners left loads of junk in a shed but amongst it I found a massive tube full of mercury. The tube must be about a metre long and fairly thick. I must have meeb part of an old thermometer I suspect. I don't really know what to do with it to be honest.
(Tom Jones's Mojo Hasn't had any since, Fri 15 Aug 2008, 13:12, closed)

Aimless...
...probably an old barometer. Unfortunately I now have two small kids so I won't take it off your hands.

If you want to get rid of it, take it to your local recycling place - they probably won't take it but they will know someone who will.

Alternatively, eBay it.
( Amish Information Systems hates misplaced, commas, Fri 15 Aug 2008, 14:36, closed)

Defo a barometer
My opinion: just keep it - mercury's not that bad if it's sealed up and old-school barometers are well cool.
(Shippy likes linebreaks and doesn't care what you think, Fri 15 Aug 2008, 17:01, closed)