Avocado Seed Sprouter for Mason Jar

I made this for a friend, so I'm not sure it's actually good for sprouting avocado seeds. It prints well with the included support mechanism. It also fits nicely on a standard mason jar.

UPDATE: Dec 12, 2016
Based on STIG_'s comment below, I've increased the slope on the fingers to allow the seed to sit lower in the jar. I didn't realize that about 1/3rd of it was supposed to be under water. It should print without supports now because there's only a 30 degree overhang. The support str