Remixed from https://www.thingiverse.com/thing:2181264/
Flattened out the back, fixed up the mesh a bit, and removed the tongue as it was too thin to print successfully. It should now scale better, and print better too.
I would suggest using some support at the base of the horns, but other than that you shouldn't need much else. I printed mine at 0.2mm, 20% infill, scalled waaaay down.
All of my models are now free!
I've not had much luck trying to sell them, and I can't be bothered anyway. I'd rather have them accessible to the community rather than making a few bucks. If you enjoy my work, buy me a cup of coffee with that donate button!