Wild Studio - Using Modifiers to Alter Initial Colours
Once the initial ink has been achieved the colour can be modified by the use of common household condiments such as baking soda or citric acid. If these are not int the pantry they can be easily sourced at the grocery store and used without fear of harm.
In the example above the ink source was placed in each circle and then the appropriate condiment added to modify the colour. Some changes like the citric acid modifier are quite dramatic