Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:5371328.

A 3D version of the traditional Biohazard symbol with a stand.

Do yourself a favor and write down the exact scale you print at just in case you want the stand to match.

For FDM printing I recommend printing no smaller than 120mm tall. The support in the middle and the thin edges become hard to deal with smaller than that.

I printed this as per the attached Cura project with custom and tree supports and quite a bit of tweaking.

All the overhangs make me wish I had a resin printer.

There is no difference in the Sphere from V15.3.7 to V16.3 those releases are about a matching stand.

In the picture I am using the 16.3 stand with the 15.3.7 sphere