Ultrasonic therapy often uses targeted ultrasound waves to create cavitation bubbles — tiny balloons of rapidly oscillating air pockets that stretch nearby cell membranes when they burst. (sciencedaily.com)
These insects attach to pets and feed on blood until they are engorged like tiny balloons. (napahumane.org)
In the field, you can kidnap stunned or sleeping (not dead) soldiers using the Fulton Recovery System, which attaches tiny balloons to them and transports them back to Mother Base to join your army. (pcgamer.com)