To make these ladybugs first you have to paint all the bottle caps available to you with red acrylic color. If they are already red then think your half work done. Once the paint has dried detail the bugs and make their heads, wings and spots with black paint. Make the eyes with white paint and voila!
If painting is something that is difficult for you to do, but you still love the idea then the best thing to do will be pasting a picture of ladybug like these. Wish you a full of fun crafting experience.