Still working through the huge mass of puzzles... here's another set.
The Star Octagon Puzzle by Theo Geerink, IPP17 1997
Six Serpentine Strings by Markus Gotz, IPP29 2009
Insane Assembly 177 by HJM van Grol, IPP24 2004
DiskFits by Norton Starr, IPP29 2009
Sparring cubes by Anatoli Kalinin, IPP22 2002
Shipping determined at close of auction.