Alright before I head off to sleep and perchance to dream, here are some Tubas. Whoever did the VSCO2 one certainly blew his brains out at the highest velocity layer!
VSCO2 Tuba Win 64 Win 32 Mac VST Mac AU
Sonatina Tuba Win 64 Win 32 Mac VST Mac AU
Iowa Tuba Win 64 Win 32 Mac VST Mac AU
VSCO 2: Creative Commons Zero 1.0 Universal : Versilian Studios / Sam Gossner
Sonatina: Creative Commons Sampling Plus 1.0: Mattias Westlund
Iowa: Public Domain thanks to the University of Iowa.