What Do These Have in Common?

Can't wait to see what you Note'rs come up with. 

I'll stop back and tell you what they have in common to me later.

1. Backpacker

2. Apprentice

3. Matterhorn

4. Journeyman

5. Patriot

6. Golf Pro

7. Picnic

8. Viking

9. Trout

10. Zermatt