How do you get a free hair coupon in Maplestory?

There are at least 2 ways to obtain a free hair coupon in Maplestory.

One is to wait for an event that actually gives out the hair coupon as a reward or a gift. This happnened twice that I know of in MapleSea. One was for the Post Bing Bang, and another occasion for some other event that I can't remember.

Next, if you are playing MapleSEA, check out the Cashshop to see if you have any points. Points can be used to obtain the Hair Coupons. Recently, with the introduction of new Resistance characters, (sadly event is over) players can obtain points if they login and play their Resistance characters.

That's about the 2 methods that I know. The other method is... ask uf friends in Maple to give you a hair coupon.. for your Birthday or whatever. However, your friends will have to buy ACash and then send you the Hair coupon.

Hope this helps