If we're on the subject of effects, I've just had an idea for Paper Hearts - rip loads of little paper hearts from different colours of paper, and then place them all together in the shape of a heart (of course, you don't want them all the same way. Some upside down, some facing left, some facing right, skewed, and normal), take a picture of it, and either use the picture or stick it into Photoshop/Fireworks and use the nice little painting effect on it (not too much, mind), to make it look half real half not.

I might actually have a shot at that tomorrow, now I think about it.