A thing to remember about image effects...they are fun and make a page interesting, but some take longer to download than others.  Keep this in mind when you make your image effects.

Ghost Float: Description: Three little ghosts dance on your page for a set amount of time.
Falling Leaves Drop: Description:  Autumn leaves gently cascade down your pages.
Ghost Drop: Description:  Ghosts drift down your page adding a haunting theme.
Raindrops: Description:  Gently falling raindrops.  Great for spring pages.
Snowflake Drop: Description:  Snowflakes fall softly down your pages.