How and where can I upgrade the gold an silver tracer weapons?

[Padoru]

I just got them and I want to upgrade them before I progress further in the DLC area

[SadPlatty©]

If you got the weapon upgrade box from the smith - you should be able to update them via Twinkling Titanite up to +5 at a bonfire (otherwise, any smith can level them).

Would be like 22 pieces for both or something if memory serves correctly (1,1,2,3,4)

[Crypto Gamer]

The Giant Smiths in Anor Londo sells Twinkling titanites for I think 8k souls.

Crystal lizard also often drop them.

One of the tracers have kinda fast bleed build up.

[raschel2010]

The clams in the crystal cave and ash lake drop twinkling titanite.

[Protoman]

The clams in Crystal Cave are the best source. Teleport to the bonfire where Seath was (listed as "Crystal Cave") and there are 6 right nearby. I usually only kill the 5 nearest, the 6th one is a little too far. I got 50~60 in an hour and a half. Just be careful because the clams hit like a truck.

Remember to equip the Covetous Gold Serpent Ring, be human and have 10 humanity to maximize drop rates.

[qwerrie]

I farm twinkles at Crystal cave - clams suggest a lot of it.