ArtsMedford (formerly Medford Arts Center, Inc.) invites you to the ninth edition of "Tuesdays with MARV," featuring local artists and their work using MACI's beloved Medford Arts Resource Vehicle. This week, join mosaic artist Susan Altman for a short, interactive Zoom workshop to make a small decorative shape for the holidays. You can give your piece to someone you love or brighten up your home for the holidays. These can be hung up or used flat, or even used as…