T-shirts sound like a good plan, maybe your 'support team' could wear them as they follow you down with your clothes. This way there could be more buckets as well to try and fill !!
A serious thought I know, but hey thought it was worth sharing
If you do not yet have a route planned and are collecting on the way down with a bucket then we think you should ski the route that takes in the most cafes! We think you will have more joy with people getting their hand in their pockets! Plus you can count it as a thaw out stop