Couldn't you just grasp the opened receptacle with tweezers, reach in there, and...scoop?
I've always thought the idea of being turned into a diamond was pretty cool. (Also expensive, but not worse than an actual burial, really.) The rest of my family looks at me in horror when I mention it, so I guess I'll have to just...not.
But closed casket, a hand-crank on one end, and playing "Pop Goes the Weasel!" is non-negotiable. It's happening, or they get nothing in my will.