There are all kinds of ways to do this if you think about it - dots or dashes behind a bug or bouncing ball, or maybe some exhaust behind a card.
Tammy used rhinestones to create this effect, check it out:
Once again, you're seeing papers and rub-ons from Torendi's shop, and also that lovely piece of ribbon. Have you stopped over there yet? If not, get on over there and also pop over to their blog~