A half peach cast in soft gummy, stone still seated. Handle it the way you would the real thing.
HANDLEGrab the flesh to stretch it, or grab the stone and pull. The hollow clings, then lets go. Drop it back in and it settles home. Scroll, or add a second finger, while holding to twist.
Illustrative scale: 1 unit = 1 cm, gummy at 1.1 g/cm³. Volume is summed live over every triangle. Grip is the share of the hollow's lining still holding the stone.