Yeast Vial standing holder (Proscitech LCA-02)

I bought a grab pack of these Proscitech 50mL LCA-02 vials (https://proscitech.com/?navaction=show_page&chapter=l&page=9#lca01) for storing yeast in. Unfortunately i didnt realise that they were conical bottom and couldnt be stood up. While i stash them in cups for freezing, here is a simple stand to put them in for thawing and then usage.