Because 3D printer owners not only get to feel validated about owning a 3D printer, but also get to help the community during these harsh times.

There's a lot of people saying here that it's cheaper to 3D print. It is not. Even if the claim of 5 cents a 3D printed whistle is true, and I don't really believe it, it's not hard to find bulk plastic whistles with the price dropping as low as 2 cents per unit.