I would fill it with clear crystal diamonds (50ct./$5) for a really luxe feel. How glam would that be on your nightstand?
Fillable and Chic lamp
I'm loving this modern yet chic table lamp from Lamps Plus. With a fillable glass base, it's easy to change the vibe of the lamp by what you choose to fill it with. Try filling it with sand for your beach house or beach themed room.