Great idea Clara. I’ve been doing this for years. One of the 1st tricks I learned. Except my icing sugar is in either a mesh bag or jcloth with an elastic band to secure. I also use a shaker made for parmesan cheese, put my cornstarch in that. Has tiny holes so only a small amount comes out when you shake.
Creativity is God's gift to us. Using our creativity is our gift back to God. Clarky's Cakes 😎