DIY Rocket ship photo booth at a space themed birthday blast off party. Use a few cardboard boxes covered in blue plastic tableclothes and spraymount a foamcore rocket ship on front. Cut a porthole in.
Using decorative lingerie elastic - sew the elastic to the fabric with the right sides facing each other (as if you were making an ordinary seam) using a slight zig zag stitch. Then, fold the elastic under, and top stitch using a wider zig zag.