Soda Paper Squishy Design Showcase: 7 Ultra-Realistic Cans You Can Replicate at Home
By James H. Sterling
The internal stuffing dictates the physical performance of the finished squishy. Crafters balance density, rebound speed, and cost when selecting an internal core.
| Stuffing Material | Rebound Speed | Average Material Cost | Primary Tactile Feel |
|---|---|---|---|
| Memory Foam (Carved Scrap) | 4, 7 seconds (Slow Rise) | $8, $15 per block | Dense, doughy, slow luxury rebound |
| Polyfill Fiberfill | 0.5, 1.5 seconds (Instant) | $4, $7 per bag | Airy, pillow-like, springy bounce |
| Plastic Grocery Bag Shreds | 2, 3 seconds (Moderate) | $0 (Upcycled) | Crunchy, loud acoustic crinkle |
| Cosmetic Sponge Wedges | 2, 4 seconds (Medium-Slow) | $2, $4 per pack | Firm, compact, uniform resistance |
High-density memory foam cut from old pillow offcuts remains the gold standard for slow-rise stuffing. Because memory foam lacks inherent spring, it relies on surrounding air pressure. When compressed inside a sealed paper envelope with a single pinhole vent, the foam slowly expands as air is vacuumed back into the can. By contrast, polyfill fiberfill offers instant bounceback, making it better suited for high-speed stress squishing rather than slow-rise visual showcases.
James Sterling reports on renewable energy developments, climate policy, ecological conservation, and green tech innovations around the globe.
