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[grimbeny]

I read this on a website (i havnt tried it though)

First start by feeding two Adult mice, one after the other. When your snake happily accepts this, thaw out one Adult mouse and one Hopper Rat for his next meal. Feed the mouse first, and when you get to the last big gulp to swallow the back legs of the mouse, place the head of the rat in the snake's mouth. Generally he will keep on eating as if its just a really long mouse.