u/ConfidentBread336

I carry two basic TT slim pens at work. Depending what what I'm doing I typically write in red or black or blue. I was wondering if someone on here makes like custom end caps like plastic or such. I'm looking for a way to differentiate the pens when they're clipped to my pocket. Like a red end cap for a red pen and blue or black for the other. I got in touch with someone who could cerakote some caps but it seemed expensive. Maybe someone here can 3d print them or does anyone have recommendations for a pain/finish that would last well on titanium?