The charm of SpaceGlass
Synthetic Opal is put in SpaceGlass in the image of a planet somewhere.
Each of the three types of opal used in it below changes the color in various ways depending on how the way the light hits.
Shines in "Red", "Green", and "Rainbow".
Shines in "Pink", "Green", and "Blue".
Shines in "Blue" or "Green".
Also it may or may not be visible depending
on the angle of light.
Glittering Distant Stars
Air bubbles are put in it in the image of distant stars.
The bubbles are shined according to the angle of light, as shown in the video below.
The colorful lines of blue, white, and green (spiral) are used in it in the image of the orbit of the planet.
This spiral is not colored and is drawn with only metal particles.
The image below is the same item, but it changes in hue depending on the background this much.
The way of the appearance will be changed depending on how the light hits the top and the bottom.