If you have a team of shammies...

You could try Rhino AoE slaying in Borean.
Basically grab your left-over toon, group her with any other toon of similar level (AoE is best).
Run around with these two (three shammies on follow, but not grouped with the lowbies), and aggro a bunch.
Then drop 3x Magma Totems and 1x Stoneclaw.
Re-drop Stoneclaw as necessary (round-robin).

I did 60th to 70th, in a very boring afternoon.
Well, boring until I put a dvd on.
But hard to complain with 10 levels (on two toons) in just under 11 hours of play time, looting everything.

It would have been faster without looting the rhino meat, but with the Dalaran cooking daily... stacks of 5 rhino meat sell for 5g per stack.
With 10 stacks (of five) listed daily, it was over 3 months to get rid of it all.