The eyes should be fixed by specific tools, instead of handwork. The backs can have small or big holes. Inappropriate inserting can cause the backings easily break. In those cases the eyes can be used as glue on eyes or alternatively the screw part can be glued back onto the back of the eyes.
eBay
20Pcs Safety Eyelashes for Doll Making Eye Make Up Accessories Crafts Eyelashes Plastic Stuffed Crochet Eye Lashes for Amigurumi
Aliexpress UK
Teddy Bear and Stuffed soft toys and Animals Hard Plastic Safety Eyes. Various Colours White, Brown, Black, Yellow, Amber, Blue and Green. 1 Pair Contains 2 eyes and 2 safety Backs. 3 Pair Contains 6 eyes and 6 Safety Backs.
eBay
BLMUSA Anti Blue Light Photochromic Prescription Glasses Fashion Pilot Sporty Driving Safety Eyeware Men Progressive Eyeglasses
Aliexpress UK
Features: Durable and Practical, DIY Crafts, Doll Accessories. Give your lovely doll have a fashion new eyes. Suitable for many kinds of puppets, doll bear, plush animals, etc. 100 pcs Toy Dolls Eyes (The dolls are not included. ).
eBay
Hot-Selling Protective Safety Glasses CE AnsiZ87 Eye Protection Clear Goggles Dustproof Eyewear Anti Fog Splash For Working
Aliexpress UK
[Nose 560pcs. [Infinite Imagination] These plastic safety eyes and handmade noses are perfect for DIY use. Easy to use] The gasket can prevent the eyes and nose from falling off. [Best Gift] Only 560 safe eyes and nose, including washers.
eBay
Beach Rest Relax Eyepatch Sunglasses Swim Sunscreen Black Tanning Protective Eyewear Eye Laser Light Safety Protection Goggles
Aliexpress UK
Our black plastic safety eyes are great for making teddy bears, rag dolls, amigurumi, soft toys and other crafts. Our plastic safety eyes have a retaining plastic back that locks onto the back of the eye, on the back of the fabric, preventing the eyes from being pulled out.
eBay
Safety Goggles Goggles Fit Over Eyeglasses Anti-Fog Safety Glasses Clear Lab Goggles Chemistry Protective Eyewear
Aliexpress UK
Various Safety Eyes for Teddy Bear Making Soft Toys Animal Dolls Amigurumi .
eBay
Safety Goggles Wide-Vision Adjustable Eye Protection Clear Lens Anti Fog Goggles Soft Lightweight Eyewear Safety Glasses
Aliexpress UK
Safety eyes for teddy bear and soft toy making supplies. Colour: mixed colours, black pupil. Material: High quality glossy coating, polished hard plastic resin. Includes safety backs. Size: 10 mm. trendy dog bone pendant, Silver pear drop pendant, cube & single stone pendant, Lockets & Keys.
eBay
Anti-Splash Eye Protection Work Safety Goggles Windproof Dustproof Protective Glasses Optical Lens Frame Cycling Glasses Goggles
Aliexpress UK
The sizes are approximate. There can be a slight difference. The pin part of the eyes can be short or long, thick or thin depends on model. The stem part of the eyes can be plastic or wire.The eye part can differ in shape, it can be round, oval or flat.
eBay
Protective Goggles Safety Glasses Welding Glasses Green Eye Wear Adjustable Work Lightproof Glasses
Aliexpress UK