Diy Alien Dog Costume . Halloween is the best excuse to embrace your inner alien and dress up how you've always wanted. Check out our alien dog costume selection for the very best in unique or custom, handmade pieces from our shops. Alien Halloween Costume Ideas That Are OutofThisWorld Creative from www.pinterest.com Create your own toy story alien costume for halloween » for kids & adults » find images, accessories & a tutorial for your sweet & scary diy costume! Sew the two hood pieces together at the top curve. By sabine | apr 30, 2017 | all costumes, diy halloween costumes for men, diy halloween costumes for women, diy scary halloween costumes, diy.