Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:3808423.

Squeeze key for gerber toddler squeeze snacks. Center opening is 85mm, so could be somewhat universal.

Printed at:

.12 Layer height no supports / 2 line skirt

-ADDED V2-

Refined the end to allow different sizes and removed an extrusion from the other end. Uses less plastic.