IDENTIFY THE KNOT CHALLENGE

Congratulations to Cadet A. J. Geagley who correctly identified the knot as a cross knot.  The knot has various names, and cross knot is but one of the most common; the specific name I was looking for based on the clue I gave below was "Japanese (or Chinese) Square Knot."  [My hint refers to the fact that in the U.S. the square knot is what most mariners refer to as the reef knot.  Obviously this was not the clearest of clues, but then it wasn't meant to be.]  And by the way, how come no one has found my penny? 

Here's a more graphic challenge for those of you still grappling with the penny:



Identify this knot.  Here's a hint:  It's not a reef knot!

 Incidentally, hints # 1 and # 2 in the penny challenge were solved successfully.  One of you classmates successfully cracked the code and found hint # 3 behind the plan.  Good luck on finding the penny.