Which yields a beautiful grain pattern when carved. Here is the kuksa I have carved which requires some sanding and then oiling to bring out the grain pattern.
Once completed and oiled, I will add another picture below.
I manage a nature reserve, teach natural living/wilderness living skills and own a cabin in Swedish Lapland (150kms inside the Arctic Circle). www.naturallore.co.uk

and here is a piece of video of me boiling water in a glass bottle.
I hope this size and design will be good for teaching fire by friction as I find they struggle to achieve sufficient pressure on a full sized set.
The addition of a piece of Ash wood to rest the vice on adds to its stability, allows more pressure to be applied and by moving the piece of Ash nearer of further away the height can be adjusted.
The vice can be held against the wood using the foot or knee.
The primitive "drill bit" is then inserted into the end of the bow-drill.
Also included in the kit is a variety of mains adapters for all over the world, adapters for charging a variety of electronic equipment including ; iPOD, PSP, Nokia and many more.