This rigid polyurethane foam from Etsy is dust-free and easy to paint. It provides crisp edges, making it a professional replacement for wood in signage or prototyping. FloraCraft Styrofoam Sculpting Block United Art and Education Go to product viewer dialog for this item.
This 1.6 lb density foam has a fine texture that carves like soft wood and won't crack or split. You can find it at Blick Art Materials for $52.69.
Specifically designed for floral art, this green foam holds stems and picks securely in place. It is available at Hobby Lobby for $1.99. buy foam blocks
A lightweight, crunchy-cell base that can be painted or coated to create any texture. You can buy it at Michaels for $9.49. FloraFoM Floral Foam Block - 3.9" x 3.9" x 2" Hobby Lobby Go to product viewer dialog for this item.
Do you have a specific or sculpting tool (like a hot wire cutter) in mind for this piece? Go to product viewer dialog for this item. This rigid polyurethane foam from Etsy is dust-free
Ideal for thick cosplay props, this material is dense enough to hold 250+ lbs with minimal compression but light enough to float. It is easier to heat-seal and sand than lower-density options. Available at Walmart for $79.99.
CNC and Modeling Foam (Rigid Polyurethane Foam) - High Density 4lb/ft3 Etsy - Seller Go to product viewer dialog for this item. This 1
A soft polyurethane option for upholstery-based art or fabric-covered pieces. Find it at Walmart for $10.97.