A moth is a great alternative costume to the butterfly and follows roughly the same design, in that both require similar shaped wings and antennae. The advantage of a moth costume is that the body of the moth appears furry compared to that of a butterfly, making this an ideal costume for winter as it can be made from fleece or other warm material. This design is only a guide and the colors and accessories can be changed to suit the occasion.
Trace around the bed sheet with a marker to make the basic shape for the wings. Make one V shape on either side and one from the bottom so the top part of the wings is larger than the bottom. Make the width of the wings as long the wearer's arm span.
Cut out the wings and hem the edges with a needle and thread to stop them fraying. Stitch modelling wire into the hemline to add extra support.
Use markers to make wing patterns on the wings. Make the patterns as simple or as complex as time will allow.
Cut some strips of fabric from the bed sheet trimmings and sew them as loops into the top corners of the wings for the wrists to go through.
Finish the costume with deely boppers for antennae.
Select a fleece one-piece in a color similar to the wings. Alternatively a cotton polyester sweatsuit will be ideal. Make your own antennae by attaching feathers to a plastic headband. Moths are normally quite dull colors, grey, brown and black, but there is no reason your moth cannot be more colorful. Add sequins or rhinestones or trim to the wings and fleece to make it more interesting.