Cat Butt Bread Clip with Channel for bag

@Burak19891 made the original version of this bread clip.  This remix makes two intended changes.

1. Adds a 1.5mm channel from the center to the outside edge to make it easier to put a bag into it.  Instead of trying to force the bag through the hole, you can slide the opened bag through the channel and gather it in the hole, once it's all in the hole then hold the clip and twist the bag.
2. I flipped the print upside down, so the black and white markings come out crisper and provides a better finish, IMO.

This is my first upload of anything, so hopefully I got it right.