You can see a demo in the video above. You’ll need a large sponge (like this one from Amazon) and scissors. Cut a hole in the sponge, carving out a hole that goes about halfway through the sponge.

It avoids having to have both a sponge tray and the soap bottle." If you have Amazon Prime, you’ll get free shipping, of course. Not yet a member? No problem.

They noticed that as soon as the bubble came into contact with the icy surface, water that was sandwiched inside the soap began flowing upward from the base. As the bottom of the bubble cooled and ...