local class

https://thenounproject.com

https://www.youtube.com/watch?v=9cb5kk9s4wY

https://www.smooth-on.com/product-line/mold-max/?quicksearch

https://fabacademy.org/2021/labs/kamplintfort/students/mattissen-gerhard/assignments/week15/

https://fabacademy.org/2021/labs/kamplintfort/students/mattissen-gerhard/assignments/week18/

https://fabacademy.org/archives/2015/eu/students/postma.ronald/02_progress/week_09.html

https://fabacademy.org/2020/labs/leon/students/adrian-torres/week15.html