Experilab
The cyanotype kit, sold as a toy has 9.5g Ammonium Iron Citrate (brown type unfortunately, but it still works), 5g Potassium Ferricyanide, spoons and some paper.
The cyanotype kit, sold as a toy has 9.5g Ammonium Iron Citrate (brown type unfortunately, but it still works), 5g Potassium Ferricyanide, spoons and some paper.