Christmas Tree Built from Crowded Bubbles and Circles

A tall triangle-shaped Christmas tree is built entirely from round bubbles and circles of many sizes, packed tightly together with thick black outlines. One small circle sits at the very top like a tree topper, and the circles get bigger and more crowded toward the wide base. Many of the larger circles have smaller rings or crescent shapes tucked inside them, which look a bit like ornaments, eyes, or swirls. There is no trunk, no background, and no extra decorations, just the circles forming the tree shape. Every space is open and white, so it works well for markers, gel pens, or crayons. Try giving each ring inside a big circle a different color from the outside, or pick a small set of three or four colors and repeat them across the tree. It is also a nice way to practice careful coloring inside the lines with small hands.