Here are comlete lists of support ribbons: http://hope4ever.hypermart.net/ribbons.html
http://en.wikipedia.org/wiki/List_of_awareness_ribbons


Here are some of my favourites:
Support the Fight Against Ovarian Cancer
Support the Protection of Our Children
Support Heart Disease and Stroke
Support Sufferers of Alzheimer's Disease
Support the Prevention of Child Abuse
Supporting Cancer Awareness
Supporting Childhood Cancer Awareness
Supporting Leukemia Awareness
Supporting Lupus Awareness
Supporting Mothers Against Drunk Driving