The company is called Morrison Games and they also sell miniatures that can be replacement pieces for a standard risk game.

https://www.amazon.com/Napoleonic-Miniature-Navy-Sailing-Ships/dp/B00JQLUR0W

I can't take full credit for anything. I got the idea for the use of those navy ships from this youtube channel. They were upgrading pieces for a diplomacy game for a Napoleonic theme.

https://m.youtube.com/watch?v=wILZHHXQBow&pp=ygUYVXBncmFkZSBkaXBsb21hY3kgcGllY2Vz