What is in the image is two bags of 3DPrinted material. One is in polyimide (the white parts) and the other is in Aluminide (the gray parts). The amorphous stuff is foam packaging nuggets. The important thing for me is one bag holds items I have never seen in person and in fact a key element of one part is missing. The other bag holds something I have seen in person in fact I have seen two examples that might or might not have been the same model and era. You can download from the United Launch Alliance (ULA) Website 3D digital models of various shrouds and booster combinations. This I assume is very valuable to preliminary planning for a satellite builder who wishes to show off an early preview of how his/her design fits an existing launcher configuration. After I had made a model several years ago I examined how my view of that model fit into the model available from ULA. Because there was a lot of trash talk over the years about existing satellite launchers for commercial satellites I was at first unwilling to use anything currently available. After viewing space hardware in visits to Stennis, and MSFC Houston more than once and once with my son and his wife and their two grandchildren I was willing in January to explore Atlas booster with a 4-meter shroud interface at the top of the first stage. That is what is in the white objects bag. The silver or grey object bag holds a simplified and monolithic modification I made to my 3D model of a 2nd stage with two rocket engines. I used photographs to adapt the top of the 2nd stage to a space glider proposal. It should have 3 instead of only 2 connections I found from other photographs later. The various parts also would need a second print to obtain a perfect fit between the various levels of the stack.