just be warned, right before the bubble forms it makes a really nasty popping sound, so don't drop it i'm assuming it's the air in their expanding from the heat because it's like the plastic is popping or snapping
Hey, That reminds me of a project I have been wanting to try. Drops of ink in a large clear contaner full of water. I can take pics of the ink clouds with my DSLR now. I can't find a container that is right for the project though.
I have a large clear glass bowl. It's for cooking though & it has a ton of scratches in it & would be hard to se through from a camera. Plus I don't want to get ink in a bowl that is used for cooking all the time.
I tried to do mine in an old 20 gallon aquarium that I kept my bearded dragon in when his cage was getting cleaned. They might have like a 10 gallon or something at walmart for you they're super cheap, like 10 bucks tops.
You're going to need lots of light though. I think that's why I failed. I was shooting with florescent lights. I should have waited until day and shot outside or near a window.