Sparkfun Electronics in Boulder, Colorado runs a new-product video every Friday. Today, the video features a board-level product called a HackHD, which is essentially the electronic guts of a $199.99 GoPro rugged camcorder. The HackHD sells for $159.95. As usual, the folks at Sparkfun found an entertaining way to demonstrate their new product with a prank: wallboarding the video moderator’s office making the office door disappear while he was on vacation and then shooting video as he was forced to break into his own office.