Cut a rainbow shape from cardboard. Then lightly sketch the arches to guide your placement.
Paint your pasta pieces in the colors of the rainbow like red, orange, yellow, green, blue, and purple and let them dry.
Starting from the outer arch, glue on red materials: pom-poms, buttons, and painted pasta. Continue each arch with its color set.
Add feathers, sparkly pipe cleaners, and beads to enhance texture and visual contrast.
Once all sections are filled, allow the collage to dry completely.