Wide mouth mason jar strainer/shaker with lid

My first (sad) attempt at something really useful. I REALLY hope others more knowledgeable than I will take this idea and run with it. I'd be the first in line to print out their version!

I've recently gotten into making homemade everything-I-can-think-of, like laundry detergent (simple) and carpet powder (also very simple). What I really wanted was a convenient way to store and use the carpet powder. AlexEnglish's Canning Jar Strainer Lid caught my eye, but it didn't have a cover. So, after