Who makes non-white iPhone earbuds similar in function and design to Apple's default earbuds?
I've bought a couple of Belkin Headphones Adapter with Remotes, one because a few of them tore, and two because I bought one for myself and my girlfriend for use in our own cars'.

It's a very simple gadget. Push the middle for play/pause/skip/previous, and it has volume up/down controls on the extremities. Note that you have to plug the adapter into the phone, it cannot be the other way around.

These have worked in an iPhone, iPad, and iPod, and they're chiefly designed for the buttonless iPod shuffle, but work with everything else.

If you don't need the mic, you could get by with this, and any pair of headphones you want.