The first is the Lullabye Nursery, like HC mentioned
It's a nursery for the baby ponies
The second is indeed MLP too, it's the UK Kitchen set. This kitchen is quite sought after when you have it complete with all it's items
Just google it, i guess a picture of the complete set will pop up.
As for your 3rd item, it sounds to me as Princess Sundance's cape. It's from the G2 ponies. But im not sure so you might google it to be sure (or look it up elsewhere)