Columbia Heights Library, 3939 Central Ave NE,  763-706-3690, www.columbiaheightsmn.gov Tinker time: Salt dough leaves: Tuesday, Oct. 10, 4:30-6 pm. Measure out ingredients to create a salt dough and use cookie cutters and tools to create fall leaf shapes. Instructions for baking your creations at home will be included. Ages 6-12. Drop in anytime between 4:30-6, no registration required. DIY teen: Fall glass mosaics: Tues., Oct. 17, 5:30-7 pm. Mosaic is a puzzle of piecing glass together to create an image!…