Problem: We like the Google Material icons - and need them for our custom icon font. 

But the icons on github are years out of date. So this is what we do

1. Call this url in Internet Explorer because we need the woff and not the woff2 file
   https://fonts.googleapis.com/css?family=Material+Icons
2. From this css file, copy the Woff link - for V50 it was:
   https://fonts.gstatic.com/s/materialicons/v50/flUhRq6tzZclQEJ-Vdg-IuiaDsNa.woff 
3. Download the file, then convert it to SVG with this tool
   https://anyconv.com/woff2-to-svg-converter/
   Note that the tool says it can also handle Woff2, but that never worked for us.
4. Now download the SVG and upload to fontello for further processing.