This is a tutorial to help you guys being creative with some simple set up with your DSLR camera.
1.. Set the aperture to the largest ( f2.8 for my camera)
2.. Set the shutter shutter speed down to 5 seconds and more ( the best case is using with the tripod which I am trying to buy one ).
3.. Set the ISO to 800 or 1000.
4.. Preparing some extra light source such as the torch or the LED light ( I am using my own twinkled optical mouse in this case )
5.. Start going crazy with different shape or text in the air, do not for get your dark background.
HAVE Fun !!!!!!!!!!!