Diy Infant Costumes . 1,165 posts · 5,233 followers. This diy baby costume tutorial can be found on c.r.a.f.t. DIY Baby Costumes » Best ideas for Halloween Baby from www.pinterest.com Enjoy 25% off your first order with code pin25pct. The costumes are printable pdf patterns that come in either one or multiple sizes. A black onesie, a white beanie and some felt make the cutest baby panda costume.