Penguins

A hexagonal blue box (a pen holder) gives us examples of both refraction and internal reflection. Each of the three images of the pink penguin in the second picture is a different reflection sent back by a different side of the prism. It is easy to establish by analysing the penguin's positioning: the first image from the middle is in profile, second is in three-quarter and the third is an en face - both eyes can be seen.

The 'ice' at the bottom is the thicker liquid on whose surface the penguins are floating It has a lower refractive index, what we observe is therefore the total internal reflection effect, as in underwater pictures.

And now count the boats. How many are there: 7? 8? 9?

And here is a similar, green hexagonal pen box, but is has a cylindrical aperture in the middle. The internal reflection, refraction effects and inside dispersing lens effect make this toy even more complicated than the blue pen holder.