You can create a multitude of triplet based exercises based on the shifting accent of a triplet. Let's start with the basic triplet shifting accent exercise.
Triplet Run-Just Accents
(1st time = accents, 2nd time = rim shots)
You can also replace flams or drags or other rudiments for the accents above.
Just Flam Drags
Triplet Run - Accents
Triplet Run - Flams
Triplet Run - Rolls
Triplet Run Tree