You might consider building your costume around a DIY latex mask if you are up to the challenge or want a unique look.

A few examples of group costumes include: bands, superhero groups, celebrity couples, or a set of characters from a book, movie, etc. Make sure everyone in your group is committed to the group costume. If anyone backs out, it might ruin the costume.

For example, felt is inexpensive and can be glued together using a hot glue gun or even stapled together to create clothing. Basic cotton fabric is easy to sew with a sewing machine or by hand. [4] X Research source

Look for accessories like crowns - from big tiaras to small flowers crowns - or capes or feather boas. Good examples of easy to add embellishments include fake flowers, buttons, and glitter glue. For example, if you’re going for an evil witch look, you might choose accessories like horns, gloves, or fake long nails.

Box cutters work best for cutting through cardboard. Decorate your box after you’ve cut out the holes for your arms, head, and body.

For pants, you will need the following measurements: waist, hip, crotch depth and full leg length from waist to floor. For shirts, you will need the following measurements: neck, chest, shoulder width, arm length, armhole length and shirt length. For shorts, use the pant measurements you have, only shortening the pant length to the desired length. For skirts, you simply need waist and hip measurements. The length and fullness of the skirt will vary depending on what type of skirt you want to make. Make sure that the material you choose to use is not see-through or itchy if you are making clothing as part of your costume.

For example, to make a sheet ghost costume, put a bedsheet over your head and mark 2 holes for your eyes.