I get the 12' ones.. Just bc Peanut chews on them alot!! I will take it away when it gets to about 3" so he doesnt choke..
I get the "red barn" brand from petsmart.. if you buy one it is $3 something but I just bought a 6 pk of 12" for $21.00 so its like 3 bucks a stick plus tax... not TOO bad

and these ones dont smell