Balloon Pin House, great place to store map or noticeboard pins. Miniature balloon cluster of 300 individual pins float above a tiny rooftop.Balloon Pin House, great place to store map or noticeboard pins. Arrange your balloons by simply pressing each pin in to a solid cork ball core. Each ball is securely mounted upon three robust steel pins protruding from a tiny brass tubed chimney. The small wooden plywood house base can be stood upright on flat surfaces or easily mounted on a wall, map or noticeboard.