DIY Beginner Bead Pendant by Betsy at AnnaNimmity.com for The Frugal Girls here. There are lots more examples of using square trays with beads at the link - but I liked the square beads above the best.

DIY Beginner Bead Pendant by Betsy at AnnaNimmity.com for The Frugal Girls here. There are lots more examples of using square trays with beads at the link - but I liked the square beads above the best.