Alternative to Mrs' Stewart's bluing?

Hello all, I was wondering if in attendance is an alternative to mrs' stewarts bluing. I need it for an experiment but it is not found locally. I need one that can create brackish crystals. Is there any out there?
Why is it recommended to help yourself
Answers:    Well, the involved ingredient in the bluing that makes it adjectives work is Prussian Blue. Mrs. Stewarts bluing is a colloidal solution of Prussian blue, which reacts with the ammonia and saline to form those fluffy white chrystals. Those by the way are known as Everitt’s saline, K2Fe2Fe3(CN)6. (Sorry, but I can't type the numbers as sub or upper script. The K2 should be down, the Fe 2 and Fe 3 should be raised). Anyway, it would be a major face to make the solution using Prussian Blue. If you aren't using it because you can't find it, maybe you can find one of the pet shampoos made to build white pets fur look whiter. Those will contain bluing as well- though if it works I can't say for sure. It's the same original stuff, though, so it should.