We got a 3D printer at work, and in playing around with it I tried making a shift pattern insert for my '89 CSX. I have a good one in the '87 CSX, but those three little prongs are broken off on the '89. It came out pretty good! The surface finish is rough from our pretty cheap printer, but it fits and I think will work nicely. It's not a part that's visible, in any case. I've put the model and files on thingiverse.com: http://www.thingiverse.com/thing:1483590 .
Here's a couple of pictures. It was printed in two pieces, then glued together. The quality was better that way with our printer. In the photo, the piece on the right is the original from the '87 CSX, and the one on the left is the 3D printed one.