From Daily NK:

 Since the start of the 2000s, young women working in North Korean restaurants both in Pyongyang and abroad have been required to have double eyelid surgery..The reason why Kim Jong Il made the decision is supposedly connected with restaurant sales.

If it would make the waitresses more attractive and so allow them to bring in additional revenue I can’t imagine that Kim Jong-Il would balk at, say, using a retrovirus to insert cat genes into the girls.