On my short list pending price.
I’ll second this request.
Titanium will cost much more , what about copper, cost more but not as more as titanium
Not a fan of pure copper. It’s too heavy and scratches easily. I don’t like pure copper even for small lights.
I prefer titanium due to the lighter weight, durability, and shininess. It’s worth the extra cost.
@Wurkkos, aluminium body, copper head 
Best compromise overall
You could even make the head silver plated copper for that extra bling 
Copper, yes!
I’m willing to pay the extra amount for an all Titanium version.
Edit: or bronze. Bronze would be awesome and unique. I can only think of one other bronze light and it’s been discontinued for a long time.
As much as I’d also like a Ti version, I guess I would like to see a fully functional aluminium version first and then ask for the “special materials”, so that we know that this new concept is working well.
I would buy, just make sure if you do make it, to do full copper (button from copper).
The FWAA copper have normal aluminium button, that just don't look that nice for me.
Ps. For the TS10 aluminum version, I will probably wait for the new body colors option.
Yeah, especially the double tube/tail e-switch implementation.
This is very important, of course.
I’d like titanium. But make sure it works first.
All titanium makes no sense for a light that has to dissipate some amount of heat honestly.
You know it’s not about practicality. ;D
Wurkkos! My vote would be, Make a bare aluminum version first. Non anodized. That would make a lot of enthusiasts happy.
Yes I think Copper would be very nice, especially with the design of this small light.
Even though copper is too heavy for practical carry, a Copper Light can serve other purposes, it can be a beautiful and useful desk ornament, a convenient nightstand light, and many other uses that do not involve pocket carry…
I think Titanium would sell even more than copper. I vote for Both! 
I am certainly in for titanium.
I am a sucker for copper lights but copper/ aluminum would make sense for a pocket light.
What emitters will be used? I would pay extra for 519s from a negative DUV tint bin. Ugly tint is my one big complaint about my TS21.
Very nice! can’t wait to get one, and hoping for 519A or easy-modding.
Is it compatible with flat top batteries? or button-top only?