A method of forming a security device is disclosed wherein a magnetically aligned pigment coating coated on a first substrate upon a release layer is hot stamped onto another substrate or object. Multiple patches with aligned magnetic flakes can be oriented differently in the form of a patch work or mosaic. For example, a region of stamped aligned flakes having the flakes oriented in a North-South orientation can be stamped onto one region of an object or substrate and another region of stamped same flakes removed from a same substrate can be stamped onto a same object oriented in an E-W orientation. By first aligning and curing flakes onto a releasable substrate, these flakes can be stamped in various shapes and sizes of patches to be adhesively fixed to another substrate or object.