You tune a stick more or less "backwards" from a dulcimer.  Holding the stick in guitar style playing position, the top string is the bass string and the bottom is the melody string; middle of course is the drone.  I would say most sticks are tuned DAd, some are tuned DAA, as are most dulcimers (or CGc/CGG if you like a lower key). 

I did a few different searches and knew what I wasn't looking for (McNally, Merlin, etc.) in the way of a strum stick.

EDIT: Funny, until seeing your reply to me, I hadn't seen the photo with the stamp on the headstock-- I missed a few of the photos.   

That's it, Robin, thank you!   Same stamp on the side.    I had searched and searched--how did you find that?

There are elements of an eBay instrument which remind me of your instrument, @boingercat:

https://www.ebay.com/itm/Strumstick-Handmade/174043907074?hash=item2885d34402:g:nTYAAOSwcJVdj~Ot

*Note the mention of maker's initials at the tuners.  

Yes, I know it's not old.  Just was hoping to find some info about how to tune it, etc., because the strings are very different gauges, and I wasn't sure if that was correct.

Not heard of BFM and can't find anything on-line about them or their instruments. 

It depends on what you mean by "old"... but none of these stick instruments (not really dulcimers) are much more than 10-20 years old.  

It's hard to see in the picture, but it actually is a "B," where it says B.F.M. music. "Handcrafted By B.F.M. Music."  I thought it was an S at first.  It has great projection.  Thanks for any help you can offer!

Do you have any photos to help us?

I acquired a "stick dulcimer" that is stamped (woodburned into headstock, actually) "Handcrafted by B.F.M. Music."  Can anyone help me identify the maker?   I don't think it's old.  Thanks!