Vanblue Safety Eyes 150Pcs 6-12 mm Plastic Safety Eyes with Washers Craft Eyes for Amigurumi Stuffed Animal Crochet Projects Teddy Bear Puppet Toys DIY Crafts Making Halloween Decorations. Easy to use: the black safety eyes have threads and eye washers, put the plastic safety eyes through plastic washers, then they can be firmly attached to these washers to prevent the eyes from popping out of the dolls.