The goal of this work was to develop prototypes of open-hardware vitrification devices for sperm cryopreservation that can be integrated with existing straw platforms. The open-hardware Vitrification Device for French Straws (VD-FS) is low-cost. customizable. 3-D printable. https://www.bekindtopets.com/hot-super-Chervo-Marco-Jacke-Herren-limited-grab/