Petlinks' Foxy Flyer toy is pretty cute. It has a wide range of textures, from ribbons, soft downy fur, a rubber ring for launching and plushy linen cover.
The hypernip is already sewn inside the bulbous linen body, so once it's used up, there is no way to refill it. But your cats are still sure to enjoy it while it lasts.
All-around thoughts on this toy, it's nice to be able to use this as a dangler, by enticing my cats while hanging on the rubber loop or launching it into the next room to let it be bat around at your cat's content. The special catnip gives the Foxy Flyer an extra bang for the purchase price, and its just a pretty cute toy in general. It's worth pointing out that Clawd took special interest in the rubber loop and chewed through it the first time he played with it. So expect this toy to get some wear quickly thanks to the hypernip.
Twirl 'N Peek
Octopus Cat Toy
Knead & Seek Cat Mat
HyperNip Hyper Flyer
Purrfect Play Activity Mat