I made these teepees for the kids for Christmas last year.
Aren't they neat? They stand about 5' tall and take up about 5' of the floor.
I used this pattern for the fabric covering the poles: http://obsessivelystitching.blogspot.com/2010/02/tent-week-day-four-twin-sheet-teepee.html
Then I talked to my friends and found some bamboo on the outskirts of my town. My friend and I took a ride out there to pick it up and we walked around the property, there was TONS of bamboo out there!
I brought it all home and dried it out on some saw horses, and cleaned them up. I cut the bamboo all down to the same size (60") and sanded them by hand with sand paper sheets. That was quite the arm work out! I definitely recommend it lol. Then I wiped them down with a damp rag and put on a layer of lacquer. After a few days of drying and a reapplication of the lacquer, they were ready to go!
My kids love them! They play in them for hours at a time out in the playroom.