All proceeds from the sale of t-shirts went towards CURE PMD, to fund research.
These t-shirts are a symbol for the way of communication through smiling, as some people can not communicate verbally. The hashtag #SmileForSmiles is a way to spread the happiness through posting images with the hashtag. The saying on the back of the t-shirt "I smile for..." is an open ended statement in which on the line below it should include whoever or whatever makes you smile.