The bottle is made of one section of bamboo with one section cut off for the cap. I used cork to fit the cap inside the bottle. Really thats all you need to know to make a bamboo bottle but I will guide you step by step.
One of the cool things about this instructable is that it requieres 100% natural materials (woohoo) so no cheating and useing artificial stuff.
Last but not least: if you feel that my bottle could be more perfect and awesome than it allready is, please coment and express your feelings.
Step 1: Stuff you will need
2.Silacone seel (this stuff is made out of sand and entirely non-toxic)
3.Bulliten board cork
Step 2: Cut the bamboo
Start by taking your saw and sawing of the section you want to use about an inch away from the end of the section(I dont know what it called) be very sure your cut is level.
than cut off a section for the cap
Step 3: Clean it out
Step 4: The cap
you will than use silicone seal to glue them all togetherto make one big cork.
Now the time consuming part. Sand down the cork untill it can fit in the cap and hold it on the bottle.
glue the cork into the cap.