Snow dayz with Jill !

I hope all dogs like the snow! My Jill loves digging into the snow and running through it. I wish there were toys that were made for dogs to play in the snow with. We have lost several tennis balls out there the past couple of weeks. She will chase after the ball but then dig into the snow causing the ball to go deeper and losing it! When the snow melts we will discover about ten balls in the yard somewhere! Any ideas for toys to buy to play in the snow with?