Fat Gripz

Fat Gripz are an inexpensive alternative to thick bar training.  They fit over standard barbells/dumbbells, instantly making the bar twice as thick. You could just keep a pair of these in your gym bag and slip them over the bar whenever you want to change things up a bit (or if you are using a routine that calls for thick bar training).  Just click the image to check them out.
Fat Gripz Fat Gripz