This is my interpretation of the Spike Grenade from Halo 3. I completely modeled this myself in Fusion 360. The whole model was designed and is split up to be able to print on my i3MK3S and many of the pieces do not need supports. There are channels in the model to add in PVC and Metal rods to strengthen the model.
There is a fully combined model in a separate folder that can be used for scaling if you want to adjust. As is, the model is set to game scale which makes it comically large. (93 CM Long)
Files that bein with #x are to indicate the number of those items that you need to print.
For more details and images check out the thread I have on the 405th about this.
https://www.405th.com/forums/threads/halo-3-spike-grenade.51758/
The author marked this model as their own original creation.