I want to do some experiments that involve testing the refraction of various solutions, so I needed a hollow acrylic prism. Rather than buy one I figured why not make one. This was made from a scrap of 1/16th acrylic and solvent welded with Dichloromethane. The plug was made from a standard hockey puck. The video at the end was of the prism filled with plain water but different liquids would produce different results.