Lightly dip a rice paper in water. Lay it on a wooden cutting board. On the rice paper, place a couple pieces of lettuce, noodles, a couple of cucumber sticks, 2 pieces of avocado, and 2 pieces of crab sticks. Top with capelin or flying fish roe, mayo, and then small pieces of lettuce. Roll up, folding the sides in to make a log. Repeat to make 4 rolls.