Double blade scraper. Very easy to use. Easier to clean all window. Scrapes both directions. Also much less snow pops on your hands than with a conventional scrapers. 

Added a version with replaceable blades. You'll need 4x m3 bolts and nuts to fix the blades on to the handle. Blades easy to replace and print than whole scraper. Also different material can be used for blades and the handle, potentially reducing the cost if tougher material used.

Using bring is recommended. 

I designed it with 0.6 nozzle in mind. Will work for other nozzles sizes too.

PETG perhaps would be better to use. We tried with PLA and it worked well too.