Essentially, I struggled to print a sphere,
So i chopped it in half and the tried ot glue it, this led to a majorly lopsided failure.
Then I decided to use one on my many qualifications and design a jig.
Simply place a hemisphere in the jig,add glue then smoosh the other half on top!
There is a small hole on the bottom so you can use a pencil to lift it out after use.

Ball forming jig.3mf

Simple design,
I used this design 
https://www.thingiverse.com/thing:4139762
to print off some squash balls, but found the spherical shape challenging to print, so I chopped them in half and fixed them a bit.
These are too scale

Half squash ball

Half squash ball.3mf

A simple solution to storing nine lamy safari style pens in a layered,stylish way.

Remixed from this great design: https://www.thingiverse.com/thing:3754106/remixes

3 stack lamy safari holder

3 stack lamy safari holder done.3mf

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Greenhouse999

Ball forming jig.3mf

Half squash ball

3 stack lamy safari holder