Omitting certain products from coupon/discount

Is there any way of excluding a particular product from a coupon/discount? I’m donating the profits from a calendar to a charity and don’t want people to use a discount code on it. I also want to offer a holiday discount on other products, but just not the calendar.

Is this possible?

All the information about discounts is here:

Discounts operate on cart totals, and are not contingent on specific items.

Understood. I suppose that I’ll just ask nicely that people don’t use the discount code for the charity item.

Perhaps set a minimum order amount to ensure that no order checks out for less than the total amount of the charity item?