The molded life ring and string-end geometry is adapted from the official LDraw Parts Library: 30340 and its subparts by Michael Heidemann and Philippe Hurbain; 71149k01 by Magnus Forsberg and Steve Bliss, with shared primitives credited in the original source files. Licensed under Creative Commons Attribution 4.0: https://creativecommons.org/licenses/by/4.0/ . Coordinates were converted from LDraw units to studs, triangulated for rendering and positioned in this custom assembly. The routed string strand is generated separately.

Source parts:
https://library.ldraw.org/library/official/parts/30340.dat
https://library.ldraw.org/library/official/parts/71149k01.dat