I got all of these marbles at thrift stores, so they were even cheaper. They frequently turn up in thrift stores as people donate the left-over pieces from a project they've done, so I have collected quite a range of colors. I used Eco Glue to attach them....the same glue that I use when making my Junk Mail Gems magnets. But, any glue labeled for mosaic or other glass projects should work fine.
|The table covered in marbles|
|applying the grout|
|Grout is on...letting it dry a tad|
|Sorry, not sure why this is upside down. But after you let it dry for a few minutes, gently wipe it with a damp sponge.|
Just keep gently wiping it periodically every 10-15 minutes or so as the grout dries, removing more and more of the haze from the glass. Once the grout is dry and hard, wipe it down again with the sponge and then buff off any remaining grout haze off the glass with a dry towel.