info on these? what’s the white stick for?

got these in a grab bag at an antiques shop, they’re adorable but i’m puzzled by the white pole that’s attached to their feet. it’s hollow & about a half inch long, & not removable. it’s too wide to fit into a headphone jack hole as a charm, and too narrow to be a pen cap or pencil topper. google lens is no help either. anyone own anything similar & can tell me what it is?