I love involving leaf blowers into scenarios where there's a demon about or dark magic rituals are happening, because that is just a hilariously stressful factor to bring into the situation.
Example: you are being chased by a slug snail demon witch, and you've circled yourself with salt. Your breath of relief can't be heard over the sound of something loud closing in from around a corner.
Example 2: you want your eyebrows back, and the demon of mammals requires a human sacrifice, so you have some pizza delivery guy or gal tied up in a circle surrounded by candles each with various colored flames. You're mid speech, speaking a dead language resembling a bear growling when the door swings open and the delivery persons girlfriend, she has blue hair with green streaks, and has very well-defined triceps aims her weapon at you. It looks like a mini gun for a second, but you snicker as you recognize that it is a leafblower. But the horror creeps back in your mind as you remember a detail about the ritual. Something about candles.