ankhs are always in silver, except when they're not, and they're this really cool symbol that means all sort of deep esoteric stuff honest and anyways everyone wears them. What more of an axcuse do you need? And remember the bigger the better, and if big isn't your thing go for lot's. Ankh earrings, ankh's on chains ankhs painted onto jackets etc..
If cornered into having to say aything meaningful about the ankh just remember thet "death", Neil Gaiman's version of course, wears one then dive into a discussion about "the sandman" and comics and hope that no one notices. If that looks like it isn't working sneer, and suggest that the other person is stupid for not knowing. This should of course only be an implicit suggestion made clear by your cool and serdonic look...actually stick to the comic thing you'll be much safer with it.
There are of course other acessoriesyou can wear.