Line a second cookie sheet with waxed paper. In medium microwavable bowl, microwave candy coating uncovered on Medium (50%) 1 minute, then in 15-second intervals until melted; stir until smooth. Remove several brownie balls at a time from refrigerator. Dip tip of lollipop stick about 1/2 inch into melted coating and insert stick straight into brownie ball no more than halfway. Dip brownie pop into melted coating to cover, letting excess drip off; place on cookie sheet. Immediately adhere green gummy candies and press brown candies in center for pupils. Let stand until set. Use food decorating pen to draw veins on eyeball pops.