I've seen a few people using these recently, and was wondering if it might be a good fit for KAS (given how member-driven it is)? Two examples which operate in Australia are:
http://www.onlinegiving.com.auhttp://www.everydayhero.com.auThe premise is that individuals can put up a page through one of these services, and ask for donations. The donations can either be as sponsorship for doing something in particular, or just general requests for funds. The funds go directly to the charity (minus, I assume, some handling fees) and the page keeps track of how much has been raised on each person's behalf.
I haven't looked into these in too much depth, but I have seen these work in a few different situations now. Several co-workers set one up for sponsorship of a group charity bike ride. Another person I know set one one up for donations in lieu of flowers after the death of a family member. Because the donor can post a personal message to the requester in the process, it's a much more personal gift than a nameless donation.
I think people also enjoy seeing their personal tally on the donations page going up, which is a nice side effect too. And of course the big side effect - more money flowing into KAS with a minimum amount of work from the KAS team?
I'm not sure what the fees are like, compared to paypal fees, but it might be something worth looking at?