Is there a strong glue that is food safe?
I want to duplicate an idea I saw that was too expensive to buy. On online company is selling glass water bottles with a single, long crystal (amethyst, quarts etc.), inside the water bottle. I have several crystals - wand and points and I would like to do this myself - however I'm not sure how to secure the crystal. Any ideas? I could just glue a wand into the bottle but what glue should I use?