What gifts should we take to Seoul?

Travel Info
My wife is Korean and I am American and we are taking our 8 year old girl and 10 year old boy to see her relatives in Korea. It has been seven years since we have visited. What gifts should we take that can be taken on a airplane?

Travel Tips

For men, alchole is good.
For women, cosmetic will be really nice. Such as Lancome etc.. something expensive. ^^
When I visit other country my family or friend ask me that kind of stuff .

Others
I say you should bring some wine, or something from your hometown, anything personal is good. Ask your wife what she thinks. I'm stationed in Korea and it is customary to bring some kind of gift.
Here is an idea: buy whiskey for the men and cosmetics for the women from Duty Free Sales on the plane. That way, you will have then when you arrive, and the prices can actually be much less than in Korea. It also gets around the problem of carrying liquids on board the plane. Just remember there are customs limits on how much alcohol (and cigars/cigarettes) you can bring in.

Everytime we go to visit the relatives in Korea (my wife is Korean), this is what we do.
I'm an American ex-pat living in China and travelling to Korea frequently.
not elcectronics
Book is the best gift