

There is still one unused one wish willow left at the end of the movie.
Bear buys three Willows from the crystal shop after Sarah’s car accident, one is quickly used by Ian, one drops to the floor beside the sofa with a noticeable audio bump to draw attention to it, and the third is used by Wish Nikki shortly after Bear swallows the pills.
We hear the audio of a Willow box being opened by Wish Nikki and being snapped, meaning the one that falls to the floor in the middle screenshot scene went unused.
This feels intention rather than an error, and my theory on it currently is that Real Nikki hasn’t used her wish and the One Wish Willow company wouldn’t count her Wish version’s as her own, as during the phone call to customer services the Rep himself asks if Bear would like to speak to Nikki who is screaming and clearly not the Nikki inside the house.
Perhaps Real Nikki has a way out lying just beside Bear shortly after the ending, or maybe it’s wishful thinking for a forgotten prop. Who knows.