I've readed time ago:
A woman receives a big package at home, a wooden crate/box.
Insidem she finds another female encased in many latex layers.
She finds that is a friend that has been used as a message by her bf (?) for marriage/slave proposal,with a ring.
If she declines the proposal, she will resend her friend back redressed as she is.
But she accepts, and the way to accept, is by sending herself back instead of her friend.