The dye that Grandma used to whiten shoes is the same thing people today can use to tie-dye shirts, dip dye curtains, or stain untreated wood and wicker. Rit dye became available to the American public during World War I at a time when consumers were cut off from popular European dyes. Americans went wild for the simple yet effective dye and Rit has been a household name ever since. Today Rit is available in a range of colors, both in powdered or liquid form. Available on Amazon; $6.79.