Making special grout
I am making a house number plaque. I figured I should make it compatible with the seahorse mailbox. The bottom is seashells, top numbers and white tiles to match the mailbos.
I would like to make grout from some sand I have. I thought it would look better between the shells. I was going to mix it with Elmer's as it won't be in the rain. But Elmer's probably won't wear well in the long run.
What would you make it with?