A fixture comprising a base and a clamp , being characterised by : the base having a bottom and an elevated rim ; and the clamp having a clamp exterior in a shape of a portion of a clamp sphere, the clamp including a component space that is positioned wholly within the clamp sphere; the clamp comprising: a first side comprising: a first exterior having a first shape of a first portion of a first sphere; and a first interior opposite of the first exterior having a first component contact surface that partially defines the component space; and a second side comprising: a second exterior having a second shape of a second portion of a second sphere; and a second interior opposite of the second exterior having a second component contact surface that partially defines the component space; wherein the first side is connectable to the second side to form an assembled clamp wherein the first sphere and the second sphere share a common radius and a common centerpoint with the clamp sphere and the component space does not extend beyond the clamp sphere; wherein the clamp is positioned such that the clamp exterior is in contact with the rim ; and wherein the first side of the clamp is rotatably connected to the second side of the clamp at a hinge . the base having a bottom and an elevated rim ; and the clamp having a clamp exterior in a shape of a portion of a clamp sphere, the clamp including a component space that is positioned wholly within the clamp sphere; the clamp comprising: a first side comprising: a first exterior having a first shape of a first portion of a first sphere; and a first interior opposite of the first exterior having a first component contact surface that partially defines the component space; and a second side comprising: a second exterior having a second shape of a second portion of a second sphere; and a second interior opposite of the second exterior having a second component contact surface that partially defines the component space; wherein the first side is connectable to the second side to form an assembled clamp wherein the first sphere and the second sphere share a common radius and a common centerpoint with the clamp sphere and the component space does not extend beyond the clamp sphere; a first side comprising: a first exterior having a first shape of a first portion of a first sphere; and a first interior opposite of the first exterior having a first component contact surface that partially defines the component space; and a first exterior having a first shape of a first portion of a first sphere; and a first interior opposite of the first exterior having a first component contact surface that partially defines the component space; and a second side comprising: a second exterior having a second shape of a second portion of a second sphere; and a second interior opposite of the second exterior having a second component contact surface that partially defines the component space; a second exterior having a second shape of a second portion of a second sphere; and a second interior opposite of the second exterior having a second component contact surface that partially defines the component space; wherein the first side is connectable to the second side to form an assembled clamp wherein the first sphere and the second sphere share a common radius and a common centerpoint with the clamp sphere and the component space does not extend beyond the clamp sphere; wherein the clamp is positioned such that the clamp exterior is in contact with the rim ; and wherein the first side of the clamp is rotatably connected to the second side of the clamp at a hinge . <EOS>