You could do a totem pole out of toilet paper rolls. Just cover it w/ fondant & pipe your BC face, hands etc on it. That would be really easy~
Another idea, make a camp fire. Use pretzel sticks for the wood, candy rocks or fondant for the rocks around the fire, & red icing for the fire.
I'd even add some drawings on the side of the cake. You know the drawings that Indians made it caves. Horses, cows, deer, stick people, & such. That would be cool.
OH... do a blanket! Have it laying close to the teepee!
Now my creative juices are flowing!! I want to make an Indian cake!! OH>>> a BCT of an Eagle & put it on the teepee!! I'm making this cake!! LOL!!