Foam blocks / cubes - cut to size as required for your application - are a low cost way to improve packing times & protection during shipping
Manduka Recycled Foam Mini Travel Block - Aqua – Manduka Singapore
30 Pack Foam Craft Blocks for Modeling, 3 Inch Mini Square Cubes
Silverlake Craft Foam Block - 6 Pack of 4x4x4 Foam Cubes, EPS
6 Pack Foam Cube Squares for Crafts - Polystyrene Blocks for DIY
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
MT Product Hard Foam Blocks 4 x 4 Arts and Crafts Foam Cubes
Decofoam Cubes - Pack of 10 - CleverPatch
8 Pcs Apart Foam Insert Pre Cube Sheet Foam with Bottom Use
Biodegradable Foam Sustainable Eco Friendly… Zouch Converters
Builder Block Pack - The Foam Shop
Foam Blocks / Cubes (For Packing) Cut to Size