Folks,
While targeted at the workplace, these Emergency details stickers can be used on crash helmets too. I have about 15 or 20 of these, given to me from a colleague at one of our Gas Plants.
If you would like one then drop me a line with your address and I'll post them out but note, I'm away on holiday for a week so it may take a couple of weeks to get to you.
Cheers.
http://www.scafftag.co.uk/visual-tagging/accessories/worker-id/worker-emergency-id-tag.html
not a bad idea!