This is a marriage of the fairly realistic little hedgehog https://www.thingiverse.com/thing:2462065 and the geocache container https://www.thingiverse.com/thing:4277245.

The screw cap fits inside the base of the hedgehog

Please click LIKE if you download!

Edited: scaled the hedgehog 140% to make the walls thicker between the cache void and the outer skin. 

Print Settings

Printer Brand:

Creality

Printer: 

Ender 3

Rafts:

Yes

Supports: 

Yes

Resolution:

200

Infill: 

38

Filament: PolyMaker PLA

Category: Outdoor & Garden