The way I did it when I ran the Secret Bunny was...
You put your name in for how many packages you want to receive.
So if you put your name in once...
You buy for one
You receive for one
Doesn't matter if you have 9 million greyhounds, you put your name in one time and you are only entered one time
Now, if you want presents for EACH of your 9 million greyhounds...
Then you need to enter your name 9 million times
Don't expect people to buy you exactly what you want for your dogs either... if you are looking for that.. then don't sign up, just go out and buy your doggies exactly what you want to buy them...
That's what makes it so fun cuz you don't know what you are gonna get..
Just like forrest gump and the box of chocolates