Place the chocolate sandwich cookies on a cutting board or a piece of parchment paper.

Place the black candy melts in a microwave safe dish. Heat 20 second intervals, stirring after each heating, until the candy is melted.

Put the melted black candy in a zip top bag and snip off the end.

Put a dot in the middle of each cookie and place a heart shaped sprinkle for the nose.

Put two melted candy dots on the top of the cookie and either place a chocolate chip or upside down heart sprinkles for the ears.

Pipe on black whiskers.

If using candy eyes, pipe two candy dots above the nose and place the candy eyes on.

If not using candy eyes, place the yellow candy melts in a microwave safe dish. Heat 20 second intervals, stirring after each heating, until the candy is melted.

Place the melted yellow candy in a zip top baggie and snip off the end. Pipe two yellow eyes on each cat. Pipe a black dot in the middle of each yellow eye.

Allow the cat cookies to rest while the candy melts harden, about 15 minutes.