Start with a fairly well-formed bow tip.
Here's the horn
Bandsaw out a chunk a little wider than the tip. Leave it long
so you can hold it when you flatten it.
Here's one way of doing that.
We want to flatten the bow tip too.
Make sure they mate up pretty good.
A little cyanoacrylate glue and then some clamps.
After a day and a little shaping, this is what it looks like.