Test tubes are available online at a very low price. One can get 100 test tubes for about 20€.
Test tubes can be decorated with special glass colors, e.g. Glass Color BodyLine.
When I decorated name plates made of test tubes, I dipped the test tubes into dark violet glass color. To dry the test tubes they were installed on wood sticks. It took a very long time to dry them… at least a few days.
Then names were printed on paper (in the right dimensions), were cut out and 
subsequently inserted into the painted test tubes.
To fill up the test tubes I used heart-shaped sugar and cotton.
In the end, test tubes were decorated with a white ribbon.
Annotation
This is a really simple way to decorate name plates for special occasions. And it’s not expensive. But it really takes a long time for the glass color to dry and it does not smell very healthy.
And of course, one should take care of the test tubes. They can easily break when handling them too harsh.




hi, can you also make test tubes that look frosted? like, add some color (like blue and white) to the transparent test tube to make it look like ice??