Huge soap bubbles

We have created these huge bubbles in the Botanical garden of Masaryk University, Brno, using a mixture of detergent "Jar" (however, the "Dawn" available in USA is much better), distilled water and glycerine, and with the help of the "Bubble thing". The bubbles have various funny forms because the surface tension does not manage to make such large bubbles spherical quickly enough. The detergent and glycerine slow down the evaporation and flow within the mebrane, so it is not too difficult to create such bubbles after some excercise.