Here, shapes from aluminum cans -- coated with Mod Podge Dimensional Magic -- writer doesn't mention whether this makes the cut edges safe to handle -- but the product sounds promising -- dries, doesn't have to cure. See video tutorial

I'll never look at my Diet Coke cans the same way ever again!!! REALLY COOL PROJECT!!!! @Kelly Teske Goldsworthy E @Kristen Harmonson Moore

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