A study of pneumatic architecture was deployed in Cleveland's Little Italy neighborhood during this ten-week studio. #hashtag is a concept in which mutualistic program elements allow users to interface via social media with deflatable (rigid) pneumatic panels made of active-matrix OLED screens. Content- both genre and length- is determined by user-type and program. Its transient nature allows participants and visitors to experience a different architecture as time passes. This specific example applies the panels to the proposed rapid transit station at Mayfield and 19th Street.