DIY Bullet Ear Buds

Apparently, I need to buy some TDK EB760 ear buds :

http://www.amazon.co.uk/TDK-T62092-EB760-Boost-Earphones/dp/B00IDI8M3S

And do this :

http://www.instructables.com/id/DIY-Headphones-2/

[sigh] - yet another project.