As requested (sort of) in episode 59 of Jack Reacts, I have attempted to turn Speedcore Dave's OC into an air horn.

Blender 2.63 and some Vegas.
Mesh is mine except for the wings, which were taken from a Rainbow Dash model by KPShadowSquirrel and re-textured.
Background from "MLP:FIM", which is the property of Hasbro.
Picture of Dave's OC: http://i.imgur.com/NcYRT.png

A tad overdue lol. Also, in your face, Jack.