2. Fold two pieces of blue handmade paper into a bow and stick them 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 from blue paper, and cut 2 pieces of paper with a length of 5 cm and a width of 2 cm from gray handmade paper, and make these papers into paper rolls respectively. Cut the crab's big "pliers"-shaped paper on the red handmade paper and paste it on the gray paper roll; Cut out the small "hook" pieces of paper on the crab's leg on the 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 on 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.