Why not just write in the amount with a magic marker on knock-out slugs from outlet and junction boxes and save taxpayers even more of our valuable money?
If you do it—make the coin bigger than a quarter—maybe the size of an old half dollar—thats why the dollar coin failed—size—and while your about it—dump the ladies. They were not presidents—Presidents should be on a dollar coin. Might I suggest John Adams, James Garfield, even Teddy Roosevelt.