Select school supplies can be donated by the public at Warren City Hall to help the Warren Food Bridge fill collected new backpacks that will be given to needy schoolchildren in the city later this month.City Treasurer Lorie Barnwell and Clerk Paul Wojno are collecting No. 2 pencils, glue sticks, 24-count boxes of crayons, scissors and wide-rule spiral notebooks, at their respective offices on the second floor of City Hall, located at 1 City Square (north of 12 Mile Road, east of Van Dyke).