There's even more. rokeon wrote one too, Different Kinds of Magic (http://anthropomorfic.livejournal.com/5106.html), and springwoof has a ficlet John Sheppard and the Veil of Merlin (http://springwoof.livejournal.com/13179.html).

The Gryffindor Shep icon isn't shareable, but a_gal_icons, who made the Hufflepuff Beckett icon I'm using on this comment, made a whole series of shareable SGA/HP icons for different houses and characters.