You can achieve the same effect in numerous ways, though not perhaps with all the same colors. Want your own? Take a plate of glass and spray it with canned hair spray (cheap hairspray will work just fine). Then hold your hand palm-up and lay the glass spray-side down on top of your hand while the spray is still wet. Leave it there until it dries. You have to leave the glass face-down with your palm - if you hold it upright, it won't work as well - holding it upright will show you an aura that is over-extended in the upwards-direction.
Once it's dry, you can remove your hand and have a gander - this is the same effect at work in kirlian photography. You can color it on the opposite side of the glass if you like, though a more interesting way to get color is to add food dye to the hairspray when it's fresh out of the bottle. Once dry, frame it on a white background and you'll have your own kirlian print.
For a bit of another interesting effect, you can take very thin sheets of plastic - many of them, as thin as they can be while still being firm enough to remain flat - and using different colors in the hairspray on several sheets, make a bunch and then group them together.
Another effect can be attained by taking one that you've done on glass and baking it at around 400 degrees
or so - you'd want to put the glass in the oven before turning it on, however, or else placing cool glass in a hot oven will just make it shatter. Leave it on for about 5 minutes after it's gotten really good and hot, then turn the oven off and let the glass cool before removing it. You'll have a "scorched" aura-print.
You can also achieve the "phantom leaf" effect by laying the glass spray-side up and pressing a leaf onto it, then with a razor blade, slicing a bit of it off and removing it. Then hold it upwards - spray-side down as with your hand - and let dry.
Whether or not these are really "auras" is still the subject of debate in certain circles, but if you're into that sort of thing it can provide some amount of interest while you pass the time. And while the techniques used in "real" kirlian photography produce much prettier imagery, the prints you make this way can be scanned and colorized in a photoshop or something similar for an effect every bit as stunning.