So I purchased these little wire pieces.
They are also sold as jewelry findings at Michael's and similar craft shops.
These are a rather soft wire.
I also got some map pins and resin cast some US flamethrower tanks.
I cut the head off of the figure, and filed a groove in the backpack for the wire piece.
I drilled a hole in the neck of the figure and then glued on the map pin, wire, and backpack.
I glued the map pin with gap filling super glue.
The wire and backpack got glued with Goo rubber cement. The figure is an Airfix Luftwaffe figure.