Getting Mt Fuji walking stick home

Hi all i've bought a long walking stick from mt fuji(around 150cm+) and i want to bring it back to Singapore. I am taking Japan airlines back. Any idea if they allow me to check in the walking stick? If not, any idea how to get it back? Does haneda airport has a post office to ship it back? Thanks!

The baggage policy of your airline can be found on its website.

Yes, there is a post office at Haneda, but it is in the domestic terminal.

http://www.jal.co.jp/en/inter/baggage/inflight/#anchorlink002
�œBulky Baggage, Musical Instruments
If your baggage is oversized or overweight, it may not be accepted on our flights because the space in cargo compartment is limited. Please consult withThis page will open in a new windowJAL International reservation or your travel agency in advance if you are carrying the followings.
- Total linear dimensions exceed 203cm (80in.)
-The height exceeds 150cm (59in.) (*) and must be kept upright throughout the duration of the flight.
(*) 79cm (31in.) for 737 aircraft.
- Weighs more than 32kg (70lbs.)
- Large musical instruments such as cello, contrabass and etc.

Make a special case like this.
http://ameblo.jp/crazy-onaruu/entry-11877297375.html
http://kodure.web.fc2.com/bazu-ka.html
http://blog.goo.ne.jp/danimaru/e/aff06474bb0aba18a83485b903df46a1
Go to DIY shop. (Japanese calling "ƒz�[ƒ€ƒZƒ“ƒ^�[/home-center")
https://www.google.co.jp/search?hl=en&tbm=isch&q=%E3%83%9B%E3%83%BC%E3...
‰–ƒrŠÇ(en-bi-kan/polyvinyl chloride pipe; PVC pipe) is the cheapest.
Home-center staff knows how to.
Also cutting machine room with.
https://www.google.co.jp/search?hl=en&tbm=isch&q=%E3%83%9B%E3%83%BC%E3...
Maybe 3000Y enough as total parts and processing costs.

You can ask at your airline counter that you want to take it with you.
It may apply an excess charge(depend on your luggage size and weight), but is possible to bring back home.

You need to wrap the stick before take it to the airport.
You can buy a ski gear plastic cover at a large JP Post office for 240 Yen(2070mm X 340mm), wrap and seal well then.
http://www.post.japanpost.jp/service/you_pack/package.html

The ski gear cover is not available at Haneda airport post office. You need to visit a large JP Post office to buy it.