We had these little bottles that required a super small funnel to fit into the opening. I designed a funnel to be printed super fast to fill up our bottles.

It turned out great and solved the problem so I decided to share here because we used a few more times for other things.

Bottom opening: 8mm diameter

Width: 60mm 

Height: 70mm 

Print settings:

Vase mode: On

Layer Height: 0.16mm

PLA

No supports needed but I recommend using a outer skirt, 3mm to improve bed adhesion