Oil and Water effect

This is classic 60's visual materiel. It consists of different coloured oils mixed with water. The effect was achieved through overhead projectors and acetate with the oil and water mixture in between.
i would like to have some layers of this within my composition to hopefully further realize the concept, style and feel of the 60's, psychedelics and Jim Morrison.
This technique has been used and abused for years and always represents the era in question. Whenever this effect is used, people think of the 60's.
If used as an Opaque layer within aftereffects, it could add subtle dynamic and be the defining indicator of the decade that Jim Morrison made his own.