Lazy property with awkward ternary syntax that I love anyways.

gistfile1.m

@interface ClassWithLazyProperty ()
@property (nonatomic) LazyPropertyType *lazyProperty;
@end

@implementation ClassWithLazyProperty
- (LazyPropertyType *)lazyProperty
{
    return _lazyProperty ?: (_lazyProperty = ({
        LazyPropertyType *property = [LazyPropertyType new];
        // setup property
        property;
    }));
}
@end