4 in. cone of foam

Polystyrene foam balls for arts and crafts.  

White Foam Cones for Crafts, 4 Assorted Sizes (2.3-6 in, 16 Pack)

MutliCraft Polyfoam Cones - 3 Piece - 4-inch

Polystyrene foam balls for arts and crafts.

Foam ball 6 inches

4 in. cone of foam

Pyramid Foam 2X 12X 12 Acoustic Studios Sound Absorption Wall 2X 1

ArtCreativity Mini Ice Cream Shooters - Pack of 12-4 Inch Classic Yell · Art Creativity

4 in. cone of foam

With a little imagination, these mini wood letters can be used in all sorts of DIY creations: handmade gifts and birthday cards, scrapbooking, school

Mini Wood Letters

CraftFoM Foam Cone, Hobby Lobby

Styrofoam

Use this set of 12 white cones for crafts, modeling, science projects, or party decorations. The smooth polystyrene foam allows you to easily

White Foam Cones for Crafts, 4 Assorted Sizes (2.2-6 In, 16 Pack)

Hygloss Products Foam Cones - Craft Foam (XPS) for Projects, Arts, & Crafts, 12-Inch Tall x 4-Inch Base, White, 6 Pieces

Package of 6 foam balls 2 3/4 inches

EVA Foam Cone Spikes (6 Pack) – CosplayPros

Acoustic Research Speaker Foam Edge Repair Kit, AR 94 35bx, M6, FSK-8-4 (4 Pack)