Along with checking Halloween candy for choking hazards and other concerns, parents might want to inspect for something else: propaganda.

Creationist Ken Ham, who runs a Noah’s Ark-themed attraction in Kentucky, is encouraging his followers to hand out a Halloween “gift” that’s more trick than treat.

“One way you can make the most of this once-a-year opportunity is by giving gospel tracts to children and/or their parents, along with candy and treats,” he wrote on his website.

Ham suggests giving away the items he sells, including fake “million-dollar” bills with pictures of things like a T-Rex or Noah’s Ark on the front and warnings of eternal damnation on the back: