DIY 3D-printed Batman Lifejacket Buckle by Christoffer Björkskog | Jul 3, 2016 | DIY, For the kids | 0 comments My sons had lost the buckle for his life jacket somehow. 3d-printed a Batman version. Submit a Comment Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website Save my name, email, and website in this browser for the next time I comment.