Weddingbee boards

We are doing the same thing.  If I remember to later, I'll post pictures--we didn't actually buy the LED submersible light.  We got a regular one (like what you'd attach to a bike), put it in a snack size ziploc bag and wrapped the bag snugly around the light, and then covered the single light with clear glass rocks.  Couldn't see the bag, and the light stayed on for, I kid you not, over a month.  The plan is to buy and ship a bunch from China for cheap.  One light was plenty per vase, but we were planning on 4 vases per table (one tall + 3 short).  And if you have the floating candles like us, you actually don't want an overwhelming amount of light from below because it detracts from the candle and vice versa. 

Here was our first try at the centerpieces.  Still playing . . .