There are possibly some spoilers, but it's just in the images, not in context or anything.
1. 2. 3.
4. 5. 6.
7. 8. 9.
10. 11. 12.
All twelve were made by me, and all are up for grabs. Number 3 was one of my icons for a while, but you can use it if you want.
*flails* Have fun.
EDIT: o_o Woo. Changed one of the teasers. Thanks for pointing that out to me, Atsuka. *nod* I actually forgot about that. *o* *bad memory*