I saw the brand-new two shekel coin today.

There’s already a group on Facebook petitioning everyone to dub the coin the “shnekel” or “שנקל”. Well, why not? It’s shnei shkalim (two shekels).
Not only that, but the shnekel has it’s own website, too: www.shnekel.org
I guess this it’ll make it easier at those כל פריט ב2 שקל stores.
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This is simliar to idea behind the nickname for the Canadian two dollar coin, the “Toonie”.
The original dollar coin was nicknamed the “Loonie” due to the picture of a loon on it. When they came out with a two dollar coin, that was the natural choice for the nickname.