Inventing on Vacation: Wounded Fish Answered
This idea came to me after a day of fishing (I lost my best lure, but through the miracle of snorkeling, found it.) This seems like a simple idea, and I'm surprised it hasn't been invented yet. It is an improvement on the lures that supposedly look like a wounded fish.
The idea is simple. A small, sealable "refill tube" connects to a hollow area inside the lure. This is the reservoir for fish blood. A thin membrane on one side of the lure allows the blood to seep out. You refill by filling an eyedropper with blood and inserting it into the refill tube. (I'm being brief right now because this is the third time I've typed this and I'm getting tired.)