DEFCON Talk on DIY Tools: https://www.youtube.com/watch?v=EzL72_OzMK0
DIY Under Door Tool: https://www.youtube.com/watch?v=TCalV8HqnIM
DIY Over Door Tool: https://www.youtube.com/watch?v=LI6DfJN2UYw
Request to Exit (REX) Sensor Bypass:
Paper REX Sensor Bypass Blog Post and Video https://www.whiteoaksecurity.com/blog/bypassing-doors-part-3-rex-sensor/
Canned Air REX Sensor Bypass Videos https://www.youtube.com/watch?v=c3bSqGuSxJo https://www.youtube.com/watch?v=xbRyqFEkVI8 https://wehackpeople.wordpress.com/2019/08/28/improved-canned-air-attacks-against-rex-sensors/