Create chains, ropes, rings, bracelets, necklaces, etc, with ease.  Plenty of fun.  :laugh:

Basic instructions, also present in the comments at the top of the script:

Quote -
Mister Looper: a loop-making script

• Position the MR.LOOPER PLANE prop to define the plane in which your loop will be created.
• Reduce scale of plane as much as possible, for best results.
• If no vertices are found, try moving the plane closer to some vertices on your actors.  If only edges are intersected, it won't run.
• Move the RUN SCRIPT dial to run.
• Move the END SCRIPT dial to end.
• Change Sections setting to alter number of radial divisions of main loop.
• Change Slices setting to alter number of divisions in each cross-section ring of loop.
• Change Thickness setting to vary radius of cross-section rings.
• Set Apply smoothing to > 0.0 to smooth the resulting loop, <= 0.0 to disable smoothing.  Smoothing may shrink the loop slightly.

Possible bugs:

• Convex hull code may fail with some complex vertex selections, creating a tangle.  Try re-running with the plane scale reduced, to avoid this.
• UV mapping may not be correct.  U and V seem confused in some way which hasn't yet been sorted out.

As noted, I'm not sure the UV-mapping is quite correct, but I don't seem to be able to fix it just yet.  Hopefully I'll be able to update it with improved UV handling, soon.

Note also that the script uses a Poser scene event callback, so if this script is run while another script is already running a callback, there could be problems.

I hope someone can get some use from this script.

Enjoy!  :laugh: 

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Cage can be an opinionated jerk who posts without thinking.  He apologizes for this.  He's honestly not trying to be a turkeyhead.

Cage had some freebies, compatible with Poser 11 and below.  His Python scripts were saved at archive.org, along with the rest of the Morphography site, where they were hosted.