[Anders]

Originally Posted by Bruno

The story about a Hand Of Glory is that while the candle burns (traditionally one hour) the Hand unlocks all doors, makes the bearer invisible, and paralyzes everyone in the house except the bearer. The folklore Hand Of Glory is an ultimate tool of theft and assassination.

There's a ritual in Path magic that does this. And I got the impression that the Hand of Glory was a candle in the form of a hand with wicks for all the fingers.

ETA: Google gave me this

Adipocere may appear paste-like, be crumbly in texture, or may form a hard material depending upon the type of fatty acids involved and the chemical environment in which it is formed.

So if formed in the right environment it's not crumbly.