Months after Lutheran pastor Nadia Bolz-Weber issued a call for Christian feminists to send her their old purity rings, the once-discarded jewelry has been completely transformed.

The purity rings symbols of an abstinence pledge were melted or pounded down and reshaped into a sculpture of a vulva emerging from a throne of flames.

Bolz-Weber, the progressive Christian theologian and writer behind the project, unveiled the sculpture on Thursday at the 2019 conference for Makers, a feminist media brand .