Sayaka's Grief Seed
by Subzerofusion, published
So you have your soul gem... but you've run out of hope for the planet... what're you going to do? Transform into a witch of course! Now, the first thing you're going to need is a grief seed... but because you were cheap and printed one, it's not going to transform on it's own. So... you're going to have to print the grief seed too. (5 hours of work in Solidworks)
Like with pretty much everything else I've made so far... print out p1 and p2 of the grief seed and glue them together with the glue of your choice and paint to the colour of your choice.