I just added several links to outstanding paper rockets in my Ultimate Paper Rocket Guide. I added links to several flyable models by Eric Truax.
Shear Fun– A 13mm rocket
Skeer Crow– A 18mm rocket
Tropical Punch– A 13 mm rocket.
As always these are excellent quality fliers from Eric Truax.
In the static model section(which could possibly be made flyable with alterations) I added:
Maxus Sounding Rocket
Little Joe 6
Destination Moon Rocket
I also added a Fin Alignment guide to help with the builds.
As always these can be found in my Ultimate Paper Rocket Guide
update: Little Joe 6 moved to ready to fly rockets