Not much more to add what hasn't been added yet, but ...
- fingertip pushups for strengthening the shoulders, triceps, lower back, chest, wrists and fingers (make sure your fingers stay bent, otherwise it's called cheating
This exercise is easier to perform than the tiger pushups
- tiger pushups for strengthening the shoulders, triceps, lower back, chest, wrists and fingers (same as fingertip, only with an arched back making circular movements downwards and up)
- twisting the stick for strengthening the wrists (and probably the elbows toa degree)
- walking your kuen(s) (forms) with heavy bricks in each hand, holding them with the tigerclaw. note: don't cheat by holding the palms up !