There are no US states that allow voluntary euthanasia. Oregon and Washington allow physician assisted death. Their Death with Dignity laws allow physicians (with many stipulations) to prescribe lethal doses of medication to patients deemed to have less than 6 months to live. The other countries listed here do, in fact, permit euthanasia.

The distinction between voluntary euthanasia and assisted suicide may seem trivial, but these practices fall on somewhat different ethical and moral grounds. And they certainly stand on different legal grounds in the United States.

I suppose this coaster would be legal in those two states, so long as you pressed the button to start it up yourself.