In order for a voodoo doll to be effective, it has to include something

[Ocelot II]

that belonged to the person, preferably some clothing or a bit of hair. I recall that they were selling scraps of the suit Trump was (allegedly) wearing when he was (allegedly) shot, but those probably weren't the real thing. Even his suits aren't big enough to create scraps for every brain-dead MAGA who wanted one.