The soap bubble.. is it the bubble we easily pick in and BANG what we thought we saw, the colourful world turns out not to exist?
Of course, it does exist you only should be able to see it and if that bublle is gone you can easily blow a new one (the soap you use matters, the average dish detergent is bad) and you know what instead of blowing you can also make them by moving around holding stick with a piece of rope between them in your hand. These soap bubbles are the best and they last longer.

Cats like soap bubbles as well and I always found them fascinating able to stick to your hair, a hand or the street.