Did you try to upload them as .zip files? Some times servers don't accept certain types of files for security reasons and you need to zip them to upload. Not saying it's the case here, but it might be worth to check.
Tried to upload files again. Hosted here instead: http://www.thingiverse.com/thing:519530/#files
Stella 16inch tip with threads
Barret style tip
Tip that covers the ports in the front, "rain shield". It might help to drill holes in the rear that would face the player.
Destroyer of Threads
Did you try to upload them as .zip files? Some times servers don't accept certain types of files for security reasons and you need to zip them to upload. Not saying it's the case here, but it might be worth to check.
Actually the rain cover is designed to go over a stella front :-)
Destroyer of Threads
Looks like a great marital aide.
Apparently PE made a Stella tip without realizing it. Super impractical but I laughed.