For those who have an old printer, w/o a splicer, heres an alternative :)
If you found that the pieces that connected the tie parts was not fitting, i made adjustments accordingly.
The clip part should be glued on to the clip part. For shirts with collars and buttons i suggest gluing it sideways. For normal t-shirts glueing it straight works fine.
To glue it properly put crazy glue in the four holes in the middle and the spaces in between the holes.
Credit to thingiverse.com/thing:35940
For the Clip part.