I am doing a density bottle project. What is less dense then veggie oil?

In my project i am using corn syrup veggie oil and water that didnt work what is a nonperishable liquid less dense than veggie oil?I am doing a density bottle project. What is less dense then veggie oil?
The density of most vegetable cooking oil seems to be between 0.90 and 0.92g/cm鲁/ Here are some easily available laboratory solvents with a lower density: all figures in g/cm鲁


Acetaone = 0.782


1-butanol = 0.810


2-butanol 0.808


tert - butanol 0.786


cyclohexane = 0.779


diethyl ether = 0.714


diisopropyl ether = 0.726


ethanol = 0.791


ethyl methyl ketone = 0.806


n-hexane 0.659


methanol = 0.792





That should be enough for youI am doing a density bottle project. What is less dense then veggie oil?
is there an acid you can use? vinegar?