If you have adhesion issues please use hair spray or a light layer of glue.
I print stuff like this without issues all the time on fast mode with adhesion added. If you do not use
either please slow your machine down for the first few layers!
If you want to make this into a keychain or charm you will need to go into the slicer, highlight the model that
you put into the slicer, then hit scale then go back to the model on the build plate and drag the BLUE tab to the thickness you would like. I personally like to have my earrings at 1.20-1.60 and keychains at 2.00+