Ninja Self Defense Keychain

I printed this https://www.thingiverse.com/thing:393085 and decided to make a smaller version of it with shorter spikes. If you'd like to edit it: https://cad.onshape.com/documents/233f096153d14bb64e72b398/w/1e18358e86837c05e16ea1d2/e/08551901dd5f2b32c442f641