YJ Jeep keychain

I saw a TJ key chain and decided YJ's needed some love as well. I used a YJ grille picture as a template and the the TJ key chain for scale.

**5/21/2021**
fixed model not being watertight
IF you print with a brim DONT it prints the brim through the middle of the model in cura.

**update** 3/14/2016
I scaled down the original about 15% and removed the loop. Also the original is a little too flexible. so i made mk2 1mm thicker to add a little rigidity without loosing all the flex.