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Introduction to Cake Decorating
Cake Decorating Class
If the needle were long enough, in theory, you could insert the needle, suck out the air while squeezing the ball to collapse it. Work the ball into the bottle with the needle still inserted, then reinflate the ball through the needle before pulling it out.
It does work, but yes, for the reason you explained, not because of any change in mass.
1. To make people wonder how you got the balls in the carafe.2. You don't. That's not the point of the project. See 1, above.
Nice project! You might be able to dye the baby oil too, with candy colors meant for coloring white chocolate. (I'm not positive because mineral oil doesn't always mix with vegetable based oil. Get the candy colors at a confectioner's supply store or online.) If that doesn't work, substitute dyed veggie oil for the baby oil. Then you'll have a two-tone "lava lamp" notebook, instead of color and clear.
I'm sure this wouldn't fool someone familiar with kintsuge, but to my untrained eye it looks like a great alternative! Your mother's lion is beautiful. You did a great job!
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