DIY Balloon Pump (VIDEO) RMIT University This video is under embargo. Please login to access this video. Caption DIY balloon pump operates lab on chip technology, costs just $2 to make from stockings and a balloon. Credit RMIT University and the Walter and Eliza Hall Institute of Medical Research Usage Restrictions Credit: RMIT University and the Walter and Eliza Hall Institute of Medical Research License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.