How do you make a oil filled ampule for a kaleidoscope?

To make an oil-filled ampule for a kaleidoscope, first, select a small, clear, airtight container, such as a glass vial or plastic tube. Fill it partially with a clear or colored oil, like mineral oil or baby oil, and add small, colorful beads or glitter for visual interest. Seal the ampule securely to prevent leaks, ensuring that it can withstand movement inside the kaleidoscope. Finally, insert the ampule into the viewing chamber of the kaleidoscope, allowing the contents to shift and create mesmerizing patterns when rotated.