Vtg Retro Kmart Christmas Tree Tinsel 18” 2000 Strands Icicles SEALED X2.  I believe these are made of shiny plastic. 

From K-Mart (aka came apart) ;)

Two boxes new old stock. Kmart Tinsel silver 18 Inch Icicles. Sealed. One side of one box has tear which has been taped up. See photos. Both unused.

Bin aag 230214 3