One such incident resulted in a passer-by shoving Thum into the street, Rodig said.

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Jane McGonigal, and social entrepreneurs Peter Thum and Leila Janah to join the ranks.

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Peter Thum of New York sued Jessica Mindich of Greenwich and her company, Jewelry for a Cause.

WSJ: Conn woman sued over gun-into-jewelry idea

Thum says he'll donate any damages awarded in the case to charities working to reduce gun violence.

WSJ: Conn woman sued over gun-into-jewelry idea

"It is crucial that one be the first, " said Judd Burstein, Thum's attorney.

WSJ: Conn woman sued over gun-into-jewelry idea

Thum and partner John Zapolski (LinkedIn billionaire Reid Hoffman is also an investor) make rings, necklaces, and these handsome cuff links, designed by Roland Iten.

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Partnering with the UK-based Mines Advisory Group Thum and Zapolski have already overseen the destruction of 6, 000 confiscated guns in the Democratic Republic of Congo (DRC).

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Mindich admitted in writing that the idea to repurpose illegal firearms as jewelry originated with Thum, according to the lawsuit, which cites an email she wrote saying the seed of the project originated with Thum.

WSJ: Conn woman sued over gun-into-jewelry idea