A few fly amulets are in precious materials

Silver flat back fly amulet

Silver, flat back pierced twice in the thorax
H 1.7, W 0.9, T 0.2
New Kingdom
Private collection DA

Gold cloisonné fly amulet with carnelian and glass

Gold cloisonné with carnelian and glass
H 0.9, W 0.8, T 0.6
Undated © 2002 Musée du Louvre/Christian Décamps #E 22851

Gold fly amulet, presumably a military award

Gold, presumably a military award1 H 2.0
New Kingdom
© The Trustees of the British Museum #EA59416

Reference

1Andrews C. Amulets of Ancient Egypt, 1994, Fig. 48