"Giving Machines" are coming to Greater Boston - they'll be at CambridgeSide from December 1 through December 31, 2023. The Giving Machine is a special vending machine with a twist: users can interact with the Giving Machine, located on Level 1 at CambridgeSide, to purchase donations to local charities. Visitors can make donations by purchasing items ranging in price from $5 to $150 and include staples such as clothing and hygiene items, meals and school supplies, to livestock and life-saving…