Hello Everyone 👋 (हर हर महादेव), I have made respiratory system model. To make this model all required things you will get at home as I used everything found in my accessories. I am art and craft teacher so generaly all these things I have. So Required things are card board,chart paper,balloon, straw, water colour,glue. I m sharing final work as I am new and dont have much knowledge but will improve it... I hope people will like and subscribe my channel....