Where can I get the magnifying glass icon used in UISearchBar?

I'm using UITextField as a UISearchBar replacement and "stealing" the magnifying glass icon from the original UISearchBar with this crazy code:

    UISearchBar *originalSearchBar = [[UISearchBar alloc] init];
    for (UIView *searchBarSubview in [originalSearchBar subviews]) {
        if([searchBarSubview isKindOfClass:[UITextField class]]) {
            UITextField *textField = (UITextField *)searchBarSubview;
            [_textField setLeftView:[textField leftView]];
            [_textField setLeftViewMode:UITextFieldViewModeAlways];
        }
    }

As you've probably guessed, I don't want to use my own bitmap.

Isn't there an easier accessible magnifying glass icon somewhere in Cocoa?