One of the "novel" ways I have applied these are dip. Attach the band to a heavy dumbbell at your feet and then to your belt or for added resistance over your neck and you can really feel the tension build as you close in on lockout. The other exercise I have been using to address a weakness is in the military press or the push press. Attaching the bands to the rack and then over the bar ends. Again as you push the weight over head the added resistance really forces you to strengthen your lockout abilities.
I spent a long time looking for bands online and believe that these were more than reasonably priced and they arrived on my doorstep in 2 days. I certainly rcommend these bands to anyone who is looking to increase the intensity of their workouts. Be sure to use these on your lighter or speed days and I assure you that in a few short workouts you will start to feel the difference.