Brass is the tampon of screens, use once and toss away :/ Never tried titanium but stainless works great. I use glass stars in my glass equipment because it just makes sense, without a good resin buildup stainless screens have the tendancy to jump out of conical glass bowls. Every year or so I buy a couple hundred stainless screens in bulk but glass never dies.

I either use jack glass filters or an ashcatcher.

Chopped up a stainless mesh tea infuser about a year ago... has lasted ever since. A bit heavier gage than a standard pipe screen, and has been bent to perfectly match the curvature of my piece, meaning I'm not sacrificing any volume to a shallow screen. It's DIY and ugly, but works great if cleaned every 3-5 bowls.