The tree that bleeds metal — Its latex has an unusual blue-green colour as it contains up to 25% nickel

submitted by magnora7 from (bbc.co.uk)

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[–]Tom_Bombadil 2 insightful - 2 fun2 insightful - 1 fun3 insightful - 2 fun -  (0 children)

There's a rationale for the other comment. The nickel may induce the Oligodynamic effect.

Also, blue condoms would be a hit.