You too. I think that novel approaches to construction are going to really help provide affordable housing to a lot of people as well as provide jobs for many workers that need it. I an acquaintance, the CEO of New Story, that is doing interesting work in this space. They are attempting to use 3D printing technology to bring low cost housing to the developing countries. https://www.iconbuild.com/new-story. It is a different concept, but one that could be interesting to explore. For example, pioneering ways to produce some form of aggregate that could be used in the 3D printing of homes. I wish you well in the challenge and beyond!
I really enjoyed your idea, even though I am commenting late in the process. I appreciate the its simplicity and impact most of all. I would be interested to know how you all plan to lower the cost of manufacturing. What I appreciate the most is that talking stickers provide an immersive and tactile experience for language learning. Best of luck in your endeavors. I see this as a novel solution that can help many children learn a non-native language. I am an engineer by training. I would be more than willing to provide pro bono support to you project if you need. You can contact me directly or through linkedin.