These are Key Chain Fobs or Zipper Tab attachments or in my case Ceiling Fan Pull Knobs. With varying themes (3d printing, Star Wars, sports). I live in Florida, so there is a ceiling fan in about every room of every house. My brother keeps breaking his pull string knobs in his house, so he asked me to print some up with some various symbols on them. He is a big fan of Star Wars and Sports. He asked me to do one with the Rebel Alliance Insignia, one with the Empire Insignia, one for his favorite football team and one for his favorite baseball team. Well.. I thought they came out nice, so I did some MakerBot and RepRap ones too! And, I decided to upload them here, in case anyone wanted to print them!Update, Printed the Star Wars onesIncluded is an Openscad File... Some various .stl's that it generates... and a zip file containing the OpenScad File and all the "logo" files which are dependencies. Download it and unzip it into a folder. The Openscad file is documented and should be fairly easy to understand.Print which ever pull knobs you want. A filament change at the right time produces great results! Glue the two halves together and put a ball chain through it!