Reinforce a Kindle's case prevent pressure damage

I have an undercover Kindle case that cleverly disguises my Kindle as a hardback book. However, by early 2011 I'd loved the case enough that it was caving in on the Kindle…and cracked the plastic just under the screen. Eek! Rather than tossing the case, I strengthened the supports around the cavity using black sugru, building it up so the front cover didn't rest directly on the tablet. I cleverly set it up so it helped keep the Kindle in the case as well (so when I drop the case, the Kindle doesn't pop out and crash onto the ground). Rachel, Georgia.