Here is a few examples.
This is done with the Nikon D60 camera. Once you take a picture go to your menu and select filter effects. You will have many to choose from. To get that sparkle effect you will select cross screen. From there you will select your picture. This is where you will select number of points 4-6 or 8. Then filter amounts 2-3 or 4 stars and thenfilter angle 1-2 or 3 and lastly length of points short-med or long.