Shadow Foam is the perfect DIY custom foam.
Sealey Easy Peel Shadow Foam, 50mm Thick, Workshop
Foam Shadow Boards
Shadow Foam & Tool Control Foam
Foam Tool Organizers by FoamFit Tools
Shadow Foam
Shadow Foam Custom Size
BiGDUG Essentials Kaizen Foam Insert
1200 x 550 x 50mm Easy Peel Shadow Foam Green/Black, SF50G
Shadow Foam