Foam blocks / cubes - cut to size as required for your application - are a low cost way to improve packing times & protection during shipping
Builder Block Pack - The Foam Shop
Stem Basics: Multicolor 3/4 Foam Cubes, Pack Of 40
Best packing cubes for 2024: Organise your suitcase for your travels
30 Pack Foam Craft Blocks for Modeling, 3 Inch Mini Square Cubes
Silverlake Large Craft Foam Block - 11x17x7 EPS Polystyrene Blocks
HE1821227 - edx education Foam Cubes - Pack of 102
Foam Pit Blocks/Cubes (White) 12 X 12 X 12 Pack Of 50 Pit Foam
Biodegradable Foam Sustainable Eco Friendly… Zouch Converters
Spark Create Imagine Foam Building Blocks, Includes 100 pieces
6 Pack Foam Cube Squares for Crafts - Polystyrene Blocks for DIY