Druids are an easy class to play when tanking, but making it much easier is even better!
-I made this MYSELF, therefore I don't believe this will be a repost, if so please reply with the link-
Macro:
#showtips
/startattack
/cast [modifier:shift] Maul
/castsequence Mangle (Bear)(Rank 3), Lacerate, Lacerate, Lacerate
There's an additional thing you can do as a druid tank while spamming this macro is throw in a Maul if you're not having any rage issues, since Maul is on a different CD than all of your other skills as a bear.
Well, I hope this helps all you bears out there, with this macro and spamming maul, I easily get 1.2kish TPS with no problem.
Cheers!