Wedding Pins for all Floral Work and Floristry Uses. Diamante pins feature a 6mm acrylic head in a variety of colours. Diamante pins are suitable for Buttonholes, placing into Florist Foam and decorating flowers. Acrylic diamond-shaped headed pins, ideal for decorating flowers and attached buttonholes at weddings. Pins are also available with round pearl heads. A synthetic antique white pearl that's perfect for use in bouquets, buttonholes or corsages which work great for highlighting the centre of a flower. Full boxes of 100 pins.