The possessive form for "the rattle of the snake" is the snake's rattle.
View page
What is making the rattle sound? If it is a rattle-snake, the rattle is to warn anything the rattle-snake believes is a danger to the snake, to keep away.
View page
The baby shook his rattle.
That was spooky enough rattle your bones.
View page
BLACK TAIL RATTLE SNAKE CAINEBRAKE RATTLESNAKE EASTERN DIMOND
BACK RATTLE SNAKE MASSASAUGA RATTLE SNAKE MOJAVE RATTLE SNAKE
PACIFIC RATTLE SNAKE PIGMY RATTLE SNAKE PRARRIE RATTLE SNAKE SIDE
WATERS SPECKELED RATTLED SNAKE TIMBER RATTLE SNAKE AND WERSTERN
DIMOND BACK RATTLE SNAKE