How do you get rid of pets on Movie Star Planet

You click on home, then go onto your diary (at the bottom of the page), then there are tabs on the side of the diary click on the lightening bolt shaped 1. that is the recycle button and you can pick whatever you want to recycle. every time you recycle something you get a certain amount of points and when you get 1000 points you get a free gift! hope that's helped! :)