Use the whiskey container for support and glue the jumbo straws around the tube.
Cut a piece of acetate 6×6” and tape it to a tile that’s a little larger. This will be the base of your mold.
Cut the height of the inner cardboard tube to about ¼-½” shorter than your shortest straw. This will create a bottom thickness of ¼ -½”.
Glue the inner mold to the center of the acetate base that you marked.