Thirds:
This is a good warm up because it forces your fingers to move.
Tonguing
This is a good lick to get your tongue working. If you are going to be
playing a fast tune, you should definitely play this one.
Dynamics:
In this Warm Up, Practice going from very quiet to very loud. For a harder
challenge take it down an octave. Make sure the pitch stays the same.
Don't go flat when you get softer.
Lower Register:
This one relaxes your mouth. The more relaxed your mouth and body are,
the faster you will be able to play.
Others:
When I attended a Master Class, James
Galway gave me this one, it is a very interesting Warm Up.
Make up your own, A warm up lick should include tonguing, technique, and anything else that you will be playing.