My wife is a Glock fanatic (XDs are more my speed, but whatever). When they released the G19X, she told me how much she wanted one. So I bought her one.
As it'll be a duty pistol, it's going to be Cerakoted, probably Graphite Black. All of it. Slide, frame, mags, extra backstraps. One of her coworkers had front slide serrations milled into a G17, and she says she likes it (again, not for me, but it's her pistol). So I'm now looking at having this brand new, unfired pistol milled and Cerakoted before she lays hands on it.
Our anniversary is tomorrow (shiit, I need to get a card...), and she's already told me the rifle I built her was more than enough for an anniversary gift. So maybe this'll be a "late-anniversary-early birthday" gift. I.e., a complete surprise.