I bought the sign because it was wooden and had a deep enough back to glue bottlecaps and pour resin. I added grout, which went a lot more smoothly (literally) that the first time I made one of these trays. The whole project took one afternoon. The only thing I wish I had added were a couple drawer pulls / handles to either end, to make a proper tray.
This sign can be propped to be used as decor or turned over and used as a drinks tray should the need arise. Double the use, double the fun.