https://www.adafruit.com/product/2416
Blue Masking Tape for 3D Printing Plates [60 Yards] : Adafruit Industries, Unique & fun DIY...
OK yes, it's just masking tape. A big honkin' roll of I'm blue da-ba-dee-da-ba-die masking tape.Removing 3D printed parts can be tough. Sometimes pieces get...
blue masking tape
https://www.officedepot.com/b/masking-tape/Color--Blue/N-1211750
Blue Masking Tape - Office Depot
blue masking tapeofficedepot