This was just to test my new glass shader. Blender can't create dispersion at all and caustic very badly, so I did a shader that handles those things and here it was just a try out, but look rather good :)!
NB! This crystal bowl has too high IOR and I know it. The chart said 2.0... but after research I found out that it should be closer to 1.6. Well, I learned one thing....always do a lot of research of the material you make before doing it :D.
Blender 2.81, cycles