The perfect rustic-boho theme for a winter family get-together - display your photos on a wooden pallet, tied to a wooden ladder to provide a large easel. Add twine, lights & clothes pins to attach the pictures.
I have also seen similar centerpieces that use epsom salts instead of sugar. You could also sprinkle a mix of pearls/gems. Sand (or sugar), faux pearls, a 3 candle. An easy DIY wedding centerpiece idea.