A remix of https://www.thingiverse.com/thing:2953504
Optimized the model, so it's easier to print without supports, and also made a few other changes - added a couple more thorns etc.
Update 2018-06-18: Uploaded "merged" versions of the model, so it can be sliced with the less smart slicers properly ;)
Just use "Smiling Cactus-Body-Merged.stl" for the body, or "Smiling Cactus-Merged.stl" if you are printing the full model in single color.
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