Illuminated fabric, of course:
https://www.google.com/search?q=illuminated+fabric
we’ll have to work on improving the drivers, I’m sure
Now that’s what I call conspicuous consumption.
Obviously, we need a BLF logo group buy!
How many lumens??
Can I get NW?
I want a 90+ CRI!
And of course I’m going to need at least 3000 lumens on turbo
Too floody, I want an option to zoom …
Not available in unisex sizes.
Its all fun and games until someone spills a drink on you…
Are we gonna get the BLF A6 UI diagram printed on this shirt? If so, I’m in! 
Hmmm, maybe machine-embroider the directions using the illuminated fiber, on a natural black cotton shirt ….
Okay, here’s a place that will print on * both the front and the back.*
Nah, I’m not saying any of us would actuall spend as much on a t-shirt as on a good flashlight.
Anybody have experience doing silk-screen printing, as a hobby?
The answer is to combine,
this thread and TK’s shirt design
she already has camera ready art available post #2869
EVERY TIME this thread pops up, I think to myself, “Oooh! BLF t-shirts! Shut up and take my money!”
Then I’m disappointed when I remember after clicking on the link that this isn’t a Group Buy. 
Not yet!