[BabyCash]

I just bought Cash a litter box also, initially, i left the litter in the litter box with a pee pad on top of it and Cash just digs out the litter nd chews on it so, i sprayed some grannick apple bitter on the litter and the pad and he stopped eating it less but he started using his litter box as a play area and would bring his toys in there and play with it. finally i got fed up with him playing in it so i just dumped out the litter and placed his semi-dirty pee pad in it and put it back in his x-pen and voila! he pee in it now except i had gotten him a small litter box and after he pees in it like 3 times, the pad gets dirty and he'll go on the floor. i got him a bigger one today, one that holds almost a whole pee pad without having to fold it and so far so good.
when you see him squatting in the poop position to pick him up and place him in the litter box and say something like poop here. it works with cash. sometimes he still misses but all we have to say "uh uh uh, no no" and he repositions himself.
oh and i asked my vet about eating litter and she said that most litters are clay based so when ingested it coats the stomach so it's not good but i bought the purina dog litter and it says paper based so i figures it was okay since he likes to chew up tissues and paper towels when i'm not looking.
hope this helps!