Do any bike sharing schemes provide a way to rent or share helmets along with the bikes? Do any bike sharing schemes provide a way to rent or share helmets along with the bikes, either in a kiosk or through an arrangement with local businesses?

None of the schemes that I've used (London, Vienna, Boston) or am aware of provide them, and in most that I'm aware of it is rare to see helmets in use at all, despite the fact that most recommend them and in several cities riding without them is illegal.

Have any of the cities that have cycle hire schemes come up with a convenient way to provide helmets along with the bikes in a way that's consistent with the "use and forget" philosophy of the schemes?
In Melbourne, we have a bike share scheme. You can buy helmets for $5 from various outlets and then return them for a refund of $3 (they are then cleaned and reused).

Despite this, many people are saying that Australia's compulsory helmet laws are responsible for the lack of success of the bike sharing scheme.