Looking for advice on a solution that would be able to dissipate/hold light. As a poor example, a solution that if contained within a tube and had a light shone from below, would resemble a ‘light-saber.’ The solution would therefore need to be translucent/have a consistent turbidity (no settling). Furthermore, the solution must have a very low freezing point. Hope this is coherent and not a complete load of bosh. Thank you for any advice / suggestions.