Thought I would share my primitive DIY way I have been making two color Rippers since I don’t have a duel injector and a razor blade was just not garnishing consist results.
I started by outlining the mold cavity.

Then transferred the outline onto a scrap piece of wood using carbon copy paper. To the table saw and cut a rabbit half the baits thickness deep and half its width. Then removed the upper half of the bait profile with a dremel router bit.
Lay the bait in the recess tail paddle hanging over, place scrap wood block on top half of bait aligned with rabbit at the nose and at the tail. This put just enough pressure on the plastic to get a good fairly clean cut. Using a hand chopper found in the kitchen with some worm oil worked good especially after I put an edge on it


I found that running the cut section across a hot knife helped level out any uneven places caused while cutting. Make sure to cut a 45 degree off the nose so the second color has room to enter the gate and not lift the bait. Place the upper halves into the mold with some worm oil on the tail section, align them, and shoot the belly color.


Hope this makes sense. Most of my “projects” don’t.