The Memo-Ray

John had a ray gun which would steal the memories of anyone he zapped with it. He could then transfer those memories onto someone else, and they would inherit that person's life and memories (so if he zapped away Beyonce's memories and put them on Taylor Swift, Taylor would have Beyonce's husband, kids, and career while keeping her body, while Beyonce would have no memories and be able to be molded by John).

He could also put altered memories into people's heads, so if he turned Beyonce into his loving housewife, he could take those memories and implant them on another celebrity, like Chrissy Teigan, who would then become his housewife.

Finally, there was an 'exaggeration' button, which would turn the women into an overexaggerated version of their new memories. So if he turned Hayley Atwell into an athletic tomboy but then hit the exaggerate button, she would basically become a gym nut.

John then left with the ray to find celebrities.