An curved arrow pointing right. You definitely shouldn't mess around with mercury, but if you want a safe, similar, tactile experience, a metal called Gallium is widely available online.

A vast reservoir of mercury, trapped in permafrost for thousands of years, is being released as the ice thaws due to ...

but this seemingly innocuous happening can expose humans to severe poisoning effects of the silvery liquid-like metal. Mercury readily turns into vapour at room temperature and when inhaled gets ...