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HomeMade Modern DIY Bloktagons
3D Stacking Organizer
That's a great idea! I never thought of that!
First of all thank you. Yes, they are lined with some plastic tubes of glitter I found around the house. I emptied out the glitter and put the tubes on the pegs in the mold, then poured the concrete over them.
3D printed concrete moldsView Instructable »