These tables are an easy project and you could even get your kids to help. This can be done on plastic wood or glass. Find your self a pattern for a simple stain glass project. Geometric work best. Lots of patterns can be found on the internet. Trace your pattern on to your surface. Fill in your design with flat gems. I use silicone caulk as glue as it will stand up to outdoor use, wait 24 to 48 hours until glue is really dry and gems are firmly affixed. I like to use light color grout but you can use any color you like. Grout the flat marbles. Now you have a table you will get raves about.