This is a very motivational feature. It reminds many people that even some are disabled and have limited mobility that does not stop them from doing things for them to matter in the society. The featured products are like those that have been produced by people with any some sort of disability.
This only shows that as long as a person tries his or her best to do something useful, they will not be a burden to anyone or any society. This can serve as an inspiration for many out there that are thinking that despite their current state, they can still get a job done.