Aren't I lucky, as I found just the workout that ticks all those boxes. This standing arm workout doesn't have any repeats (i.e. all exercises are different), uses only two dumbbells and can be done ...
10 Best Arm Workouts with Dumbbells to Sculpt Your Arms Runstreet on sale, Dumbbell Exercises for Arms that Tighten and Tone Christina Carlyle on sale, 15 Minute Dumbbell Arm Workout for Bigger Biceps ...