If you follow the link through, you will find templates for 3 sizes of Nativity Costumes- child, pre-teen, and adult. These can be robes or coats [i.e. drop over the head, or wrap around the body] And they are incredibly simple to make, you only need 3 rectangles of fabric. You do not need to be a brilliant dressmaker either!
The pictures below are from when we did 'Get In The Picture' in Kirby Muxloe so I don't have any shots of children in costume - but they work just as well!
Spare strips make sashes or turbans, and rectangles make head-dresses.If you look closely, you can see the Rector's sleeves are a different fabric from the rest of his coat. Old curtains, cheap sheets and inexpensive shiny lining fabrics end up making impressive looking garments
Yes the sleeves are long, but you can just roll them up to fit, and hitch up hems by putting a sash round the waist. One size fits
all most. They are versatile, unisex, and easy to slip on over normal clothing.