Are you landlocked but still want the look of beach glass? I have found the easiest diy ever to fake the look of depression glass or beach glass using junk store glassware.
Using matte finish mode podge, food colouring and any glass vessel around you can easily create a pretty decorative piece. Certainly not for use with food but these would be lovely for display as a group at a beachy themed wedding or party.
I picked up a couple of very inexpensive pieces of glassware at Value Village. I think pieces with a lot of texture work best for this application but you can try any sort of finish. I mixed matte mode podge with food colouring drops until I got the colour I wanted and started painting. I applied two coats, letting the first dry for about an hour in between. That it! The finish is a lovely soft matte just like beach glass and imagine the variations in colour you can work with.