Cat Toy Wand Refill Yellow Birdie KatFly Teaser Attachment. Keep the fun going with the Kats’N Us Wand Teaser Refill attachment. Because lets face it-your cat is going to love playing with the wand so much that youll need to replace the attachment from time to time. Provides your cat with hours of exercise and fun! Keep your cat active and engaged! This replaceable toy will have your cat leaping to catch it. Cats love the texture of our handwoven attachments and feathers toys. They love the way they dart, skitter, and fly around.