Connector Pieces for Halo 4 Helmet Size A (no magnets/tension pins required)

Given my impatient personality, I didn't want to wait for magnets and tension pins to arrive in the mail to put together this AWESOME Halo 4 Helmet made by big_red_frog. I also don't like the messiness of gluing. So, I created these connector pieces you can print out instead.

Each one takes 3-5 minutes to print. I tried printing 20 at a time, but due to minor imperfections when printing multiple small pieces on one build plate, the cylinders won't be strong unless you print one at a time.