Finally got around to picking up a spare battery cover from the local Sprint Store and dying it. Couldn't have been easier. Now the back cover matches my TF3D blue highlights. Sweet! Next week, I apply invisibleSHIELDs to protect my $1.48 investment.
By the way, if you are looking for the RIT dye packs at Wal-Mart superstores, they packs are actually in grocery near the bleach.