I think it's handbells. No, that doesn't make sense. Here. http://tbflutes.tripod.com/photos.html
Opportunity is often missed because it wears suspenders and looks like hard work.
TB stands for the trade name of the flute maker. Thunder Bear flutes. http://tbflutes.tripod.com These are NAF (Native American Style Flutes) both 5 and 6 hole. One of the flute makers in the pictures Leonard McGann of Lone Crow flutes, a well known and respected NAF maker, passed away last year.
Here is and example of me testing one of the NAFs that I made (Shadow Bear Flutes) to give you an idea of what they sound like:
A positive attitude may not solve all your problems, but it will annoy enough people to make it worth the effort. ~Herm Albright