This was a spur of the moment design and fit. My 3 y/o didn't like his hands being cold while trying to enjoy his favorite smoothie. V1 didn't have an air pressure release hole and holy moly it was was like trying to compress a car's suspension! Some slight modifications and here we are :)

This is my first design. Watching my son get frustrated with his Paw Patrol cars not having a tow point lead me to create this. It's very simple, but functions as intended.