They look a lot like sushi rice, but don't eat 'em - these are Low Temperature Thermoplastic Beads! Also known as Friendly Plastic, Instamorph,
Thermoplastic Sheet Medical Orthopedic Splint Moldable Plastic Material 3pcs
Moldable Plastic - 100g Thermoplastic Polymorph
Thermoplastic Splints, Thermoplastic Sheets, Splinting Materials
Polly Plastics Moldable Plastic is perfect for making plastic parts without injection molds or 2-part epoxy systems. Just heat the pellets in hot water above 150 degrees F for 2-3 minutes. Remove them from the water and you can mold them into any shape you desire. Upon cooling, they will be strong and permanent. If you change your mind, you can reheat and modify until you get it right. Since this plastic is so strong, you can drill it, sand it, varnish it or superglue it to something else.
Moldable Plastic Pellets by Polly Plastics | Thermoplastic Beads | Cosplay Projects Repairs (7 oz)
Hand-Moldable Plastic - Low Temperature Thermoplastic - 10…
Betionol Moldable Plastic Clay, 2lb/32oz White Modeling Clay Thermoplastic Beads for DIY Modeling Making Creative Activity, Good Creating Teaching
Thermoplastic Splints, Thermoplastic Sheets, Splinting Materials
2.54mm 0.1″ Pitch 4-pin Jumper Cable — 20cm long
Moldable Plastic Thermoplastic Beads 8OZ, White : Everything Else
Moldable Plastic - 10g Thermoplastic Polymorph
Thermoplastic Splints, Thermoplastic Sheets, Splinting Materials
Discontinued - you can grab the Hand-Moldable Plastic - Low Temperature Thermoplastic - 100g Bag instead!
Sugru - Black and White Pack
BixForm BX Bixby International
Strong, Durable and Reusable low temperature thermoplastic sheets
beaglebone – Adafruit Industries – Makers, hackers, artists, designers and engineers!