These silhouettes are for making Glow Jars or Glow Lanterns. They are printed and then attached to the inside of a glass jar. Once printed, these silhouettes are flat. To glue them to the inside of a jar, I suggest gently warming them so that the can be fit to the curve of your jar.
Each silhouette is 0.6 mm thick. You can change the size and thickness by scaling the object.