I put liquid mercury in a glass bottle and hit the top.
High speed shots taken with the Chronos 1.4 you can pre order one here: https://www.kickstarter.com/projects/1714585446/chronos-14-high-speed-camera
Video of me doing it bare handed https://www.youtube.com/watch?v=NxWvz5zhGTA
xkcd what if article on the subject: https://what-if.xkcd.com/6/
Help me make videos by donating here: https://www.patreon.com/CodysLab
