Hi there! fast way using just one tool.
U can go so far with this techniq
http://usera.imagecave.com/r3d/final2.jpg
First of all make new -> paint node (transparent option)
One polygon (our shape) and mask
http://usera.imagecave.com/r3d/02.jpg
animate the mask. 10 – 15 sec as u wish.
http://usera.imagecave.com/r3d/03.jpg
Now we ready to go. Ad node Effects -> Distort -> Ripple pro. play with options.
http://usera.imagecave.com/r3d/04.jpg
We can go now for composing
Scale, move and rotate layers to find good look in your composite
Change position of layers in timeline
http://usera.imagecave.com/r3d/10.jpg
Easy fast and funny way to make something what u exactly wont
http://usera.imagecave.com/r3d/11.jpg
Thanks) and why people use plugins?