I am new to the whole ecig thing...best thing I've done in a while. I can get enough. I think I'm getting way to much nic now. I think I need to order lower doses so my headache goes away... So I've been reading up about accessories and what's available and not. I can't find any metal 510 tips. Not drip tips but regular refillable tips. I don't think it would get to hot if you used aluminum or titanium... I think they cool faster than stainless. I have a cnc machine shop and i will be making some tips. Does this interest anyone? I don't know id I'm allowed to try to sell anything on here where I'm new. So I'll just leave it at ...if it interest you let me know and maybe I can get set up as a supplier or something and offer them to people in here. I think it's a good idea. I can't wait to make some..I'll post photos too.