Prepare disposable paper cups, colored handmade paper, bottle caps, glue sticks, scissors, etc.
2. Fold two pieces of blue handmade paper into a bow, and then stick it on the outer wall of a paper cup decorated with yellow handmade paper.
3. Cut 8 pieces of paper with a length of 3 cm and a width of 1 cm on blue paper, and cut 2 pieces of paper with a length of 5 cm and a width of 2 cm on gray handmade paper, and make these pieces of paper into paper rolls respectively. Cut the crab's big "pincers" on the red handmade paper and stick it on the gray paper roll. Cut off the small "hook" pieces of paper on the crab's legs on gray handmade paper and paste them on the sky blue paper roll.
4. Stick blue and black circular pieces of paper on the bottle cap to make crab's eyes. Stick the yellow paper roll to the bottle cap.
5. Stick the crab's eyes and legs on the paper cup. Draw the crab's mouth on the cup wall with a colored pen. A paper cup crab is ready.