NFC tags are basically flat, but there are a lot of 3D objects that already have NFC tags integrated into them. Nokia, Sony and others have released headsets and speakers which use NFC tags to automatically trigger Bluetooth pairing. read more
The most straightforward way of making a 2D shape into a 3D object is by extruding it. An extrusion is simply pushing the 2D shape into the third dimension by giving it a Z-axis depth (see Figure 3.17). The result of an extrusion is a 3D object with width, height, and now, depth. read more