A student recently told me that she created a wheelchair for her barbie.  I was curious about this and asked her what she used and why she decided to make one.  The student told me that she used old train cars for the base and a broken chair to create the wheel chair.  Then, she told me a story about one of her dolls.  The legs kept falling off on one of her favorite barbie dolls, but she didn't want to simply throw her away.  Then, she had the idea to make a wheel chair because she had never seen one before for a doll.  That's when she started creating her idea. 
I am always impressed by our students.  What a lovely, thoughtful design.