I have to make 100 cupcakes for my daughter pre-k graduation, and I want to make some decorations with royal icing but I don't know how long they would last after making them and letting them dry? or better say I need to know how far in advance I can make the decorations??.

RI decorations will keep for months if stored correctly.

Months & months! Just keep them out of direct sunlight and away from humidity.

Thanks so much is good to know I can start making the decorations without worry that they will get too old. thanks so so much to the both of you. I really appreciated