I made this about 2 years ago when my daughter was 1. She had an issue squeezing the juice box all over herself... So I threw this together and might modify it some more to make it more toddler friendly, and less compressible.
My wife told me to make banana handles for it, since she loves bananas so much.
I'm printing this atm so I may update it with changes.
Created in Tinkercad
Measurements were done based off the "Apple & Eve Fruitables Apple Harvest" Juice box.
The author marked this model as their own original creation.