Here is a nice project that was originally not made with repurposed pallets but. why not replacing the white-wood board used for the original project by old pallet planks ? Moreover, glass and wood (Bottle Centerpieces Kitchen)
Indoor Tulips - Fill glass container about with glass marbles or decorative rocks. Set tulip bulb on top of marbles or stones; pointed end up, add more marbles or rocks; so bulb is surrounded but not covered. Pour fresh water into the container.