Dye, Oil and Water (Pt1)

The last few updates mixed oil and water. This time round I've added food dye to the recipe.
You have to be quick to react to the dye as it rapidly settles to the bottom of the glass.
Different colours also react differently when dropped into the water. Black and blue seem to sink the quickest and seem less inclined to fan out in pretty patterns than dyes at the red end of the spectrum - but its early days and some dilution may be required.