We were talking the other day about blood lines, here is another version I did while working on something else. It can be done in any transparent bait, but proper temp is critical in getting it to do right. Everyone will be different. It like christmas morning when you open up the mold to see what you got. I have done this with a worm, pink with purple veins that looked very cool. There is another way to do it aswell that I will get some pics up later.