Styrofoam Yard Spike
thingiverse
This is a simple yard spike that I used for the styrofoam halloween headstones. This worked very well held them in the ground without any issues of falling over. You can scale these easy or print multiple at a time. Just superglue the 2 flat ends together then you have a screw for to go into the styrofoam and a spike to go into the ground.
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