I think some entrepreneur could have a blast making quality crucifixes with an appropriate Bible verse and President Donald Trump signature embossed on the back.
There are many Democrats these days that have so trained themselves to reject the cross that they act like vampires around them, drawing back in pain. Anything President Trump related has the same effect, so they might burst into flame when they see it.
Combining anything Trump with a crucifixes should have at least the same effect on leftwing vampires as combining a cross with garlic, stakes and mirrors.