We create mounts using magnets, the metal isolation table surface, and small steel plates (when needed). The magnets can either be small ceramic or small high strength neodymium.
As an example I have hot-glued an object I am going to create a hologram of, on a small steel plate. The object is side mounted which is explained in the object orientation later. The plate I used measured 1" x 2.5" x 1/16" thick. The plate is secured to the steel isolation table using a magnet, see figure 6. This allows me to easily reposition the object on the table where ever I need.

Figure 6 Ceramic Model used to shoot hologram

Figure 7 Medium size binding clip used on isolation table
Metal binding clips are useful for holding the holographic film, white set-up card and black shutter card.
Mounting for Laser Diode

Figure 8 Laser diode, magnet and binding clip for fabricating table mount
We can use a metal binding clip and a small magnet for mounting the laser diode to the isolation table, see figure 8. The diode is placed in the binding clip, which also serves as a heat sink. The assembly mounts to the table using a small magnet, see figure 9.

Figure 9 Laser diode mounted to isolation table