A poem from the gumball machine sits on a table at Moon Palace Books during the Minnesota Prison Writing Workshop's Gumball Extravaganza in Minneapolis on Wednesday, June 27. Board of directors president Michael Kleber-Diggs said board members often host parties where friends and volunteers hand-roll the poems and tie them with string. Founder Jennifer Bowen Hicks said the machines usually sell out after only 3-4 weeks.

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