On a bannana bag, or preferably, a pole bag.

jab
cross
hook
low right kick
mid right kick
right elbow
left elbow
back right elbow

end with either 20 knees or 5 kicks with the right

or left kick
cross
two right knees
two right elbows
teap
two left kicks
teap
flying elbow (just for fun...yeaaaaaaaaaaaaaaaaayyyyyy)

Just for reference purposes, Ajarn Chai has always defined techniques as 4 ranges. From far to close they are 1 Leg, 2 Knee, 3 Fist, 4 Elbow. For offensive purposes, to get from 1 to 4 you must go through 2 or 3. Meaning, when attacking, you cannot kick then elbow without using a knee or a punch first, otherwise you risk the heavy chance of eating a knee or elbow. Defensively, you can do anything. So when you set up your bag combos, you have to get it straight in your mind whether you are attacking or defending and work accordingly. I have a favorite banana bag drill taught me by Ajarn Chai a long time ago, and it has always worked well in real life. You hang the bag so it is leaning on the floor at about a 30-40 degree angle. Then you snap-kick with your instep up into his thigh (the underside of the slap) to make him raise his foot and set it down again. When he sets it down you do a down kick to the top of the thigh just above the knee, making sure you stay out of cross range. Ajarn Chai says if you wish to break a bone you divide the distance between joints by 1/3 and attack there.