Dozens of articles written about stabilizing crumbly specimens but I have yet to find someone who can make me feel confident about a solution.  I kayak rivers and find tusks and crumbly bones on the sandbars. They are wet or at least half wet from contact with the ground.  The stabilizer must dry quickly, be reversible and work on a wet specimens. Currently I leave most of them where I find them because I cannot come up with a good solution.