Just as the power of the open-source design paradigm has driven down the cost of software to the point that it is accessible to most people. the rise of open-source hardware is poised to drive down the cost of doing experimental science to expand access to everyone. To assist in this aim. this paper introduces a library of open-source 3-D-printable optics components. https://www.wholisticpet.shop/product-category/feline-toys/