I was recently chatting with a friend that was telling me about this Montessori school where the teacher only has large blocks in the classroom, no kitchen set, no doll house. If you want to play kitchen first you must build it. I really love this idea. Gets the kids to be more creative and expressive in how they perceive a kitchen to look. I went to my local JoAnn's fabric store and bought random sizes of foam, most are over 4 inches thick. I then cut them in different sizes to create a unique mix of blocks. Each block is covered in fabric from scraps in my personal stash. The boys are really enjoying building structures that they can crash thru. And finally something to throw at each other's heads that won't result in a trip to the ER. Boys will be boys.