Yes you can store things inside you diaper but it can happen that they dont going to smell so good after a wile special if you have use your diaper or end up using it when your things is store in there. So it maybe not is the perfect combination.
Pichu and Bounery seams like the have an awesome and nice time when the play whit there easter eggs and the are so cute to. Only hope that the dont broke any of the eggs now so the maybe heart them self or something. That should be something relay bad.
If you wont to have a cute Pichu or Pokemon plushy you should check out this site: VideoGamePlush.com. Maybe you find some cute Plush that you like.