Which items should be avoided when buying for Karwa Chauth?

Certain items are considered inauspicious for Karwa Chauth according to many. Black clothing should be avoided since it is linked to mourning, and instead shades of red should be chosen. Sharp items such as knives and scissors should also be avoided, as they are believed to have symbolic associations. Moreover, worn-out accessories and damaged, unclean puja items should be avoided.