Hi All-

Lots of good suggestions here!

If you'd like to follow a structured routine, I do have a series of finger warm-ups ("Spider Legs") that address many of the issues of positioning, strengthening, stretching, etc. that guitar players need to deal with, whatever the size of your fingers.

These exercises start out at a basic level, and move into more advanced versions. You can easily pick what level feels like the best fit for you. I don't promise it will cure fat fingers, but it helps train your hands and develop the coordination and flexibility to tackle fat-finger syndrome when it comes to making chords.

I use them myself when I warm up to play, and teach them to all my "real world" students too. Here's the link if you'd like to give it a try:

”SPIDER LEGS” WARM-UP EXERCISES
http://www.guitartricks.com/tutorial.php?input=621

Best wishes, Lisa