Cut shapes from cardboard or light-gauge sheet metal. For the arms, bend the ends of soft wire into loops and attach the cut-out shapes. – Kinetic mobile by Roland Crump (DIY Calder mobile?
Alberto Burri (1915-1995), Ferro T, 1959. 59â…› x 55â…› in (150.3 x 140 cm) http://www.christies.com/img/LotImages/2018/CKS/2018_CKS_15473_0019_000(alberto_burri_ferro_t).jpg