Donor Wall

You’d have to use the SD4 beta to do this, because it makes donors into their own custom post types. Grab it from here:

http://zatzlabs.com/project/seamless-donations/

Then you could use something like Better Recent Posts Widget to display recent donors (you can set the custom post type):

http://zatzlabs.com/project/better-recent-posts-widget/

Have fun!