I am not sure how relevant to people's interests this is, but (besides being a fan of Animorphs, of course) I am a HUGE fan of the webcomic
Homestuck, which is about a bunch of thirteen year old kids, aliens, self-discovery, war and death and justice and heroism, time travel, and a giant complex chess game between the forces of creation and destruction that the kids are unwittingly drawn into.
So, basically, it was pretty much begging to get mixed up with Animorphs, and I drew a bunch of doodles to that effect. :P Mild spoilers for Homestuck behind the cut, in the "this is a thing that exists as a concept/game mechanic in Homestuck" sort of sense.
( Thumbnails link to larger resolutions. )