My IPP 29 Puzzle Acquisitions

[gibell]

I bought several disentanglement puzzles from Dick Hess, and Lambert Bight gave me one involving a pen and two rings.  While two of the three sisters have fallen, the last as well as the "Outrageous Rings" and the pen have me totally baffled.  It's kind of love/hate with disentanglements, as there is nothing hidden to discover, but the darn things are still hard as ... heck! 

[jaurand]

I was able to take apart Grand Collision without too much trouble, but I feel like there should be an elegant solution that I'm just missing. I can't stay focused on the more difficult disentanglement puzzles; I get too frustrated!