one feature i've been wondering about: how to allow users to disable the effect from front end?
Yes, you can even create falling effects with whatever you want.
Upload on images folder of your site a new folder with your desired images (small images) and set module parameters (Flake width/height, Folder of the collection of flake images and Base folder ... see parameter instruction).
Actually the only possibility to remove the snow effect is disable the module.
Thanks for reporting.