It is a Lovely character Snowminx :) 

Though there is a slight problem. It seems you are saying that her powers developed at a young age. But in this RP our characters aren't born with special powers.

Somehow in our life we have run into some kind of item (Though I don't think it'd be a problem if you found it when you were at a young age). This item, whether found or someone gave to you, is what grants you these special powers. So would maybe the stuffed bunny be that item for you? And you only realized as you got a little older?

Edit: Also, what do you mean that you can transfer your being into the stuffed Bunny? As in your consciousness goes into the bunny? Does that leave your body vulnerable to attacks? Or do you simple infuse the stuffed bunny with your own life essence and you can thus control its actions as if it were alive?

Does anything happen to the stuffed bunny to make it more dangerous? Does it grow in size? Gain any sort of offense or defense? Does the specific type of Stuffed Animal have a specific type of magic it can use?