Mike.... Check out NOW Foods - the official site of NOW Foods and look for essential oils. I have the anise oil that I mix with plain worm oil at a four to one ratio, four parts worm oil to one part anise oil and in a large (4x7) plastics bag I add one drop when I package the baits. You can go to any pharmacy and buy a one ounce bottle with the eye dropper for a couple bucks and mix the oils in there. I've had the first mix of this oil for two years and am just now looking at mixing up another batch. It goes a super long way and is not expensive when you consider how you mix and use it. I think I paid about seven bucks for the anise oil. The shipping was free. Making your own scent is well worth the effort Mike. And you can claim your scent is hand made by you in advertising too!

I make real small ice plastics and sell them in 2x2" zip locks. This bag size gets three drops of worm oil and oil of the mix. When these baits were first offered at the bait shop where they get sold they were offered with anise scent or plain oil as a choice. Today they all get the anise scent.

Coffee grounds will be used right from the can as they have to be dry. The heat of the plastic at working temp is enough to scorch the oils and found in the coffee and then you'll have to contend will particles of coffee beans in the finished product. Garlic has to be used as an oil, like the anise oil and is available at the same website I just mentioned.

Of all the scents I have tried, the anise essential oil mix I make is the easiest to use and is by far the best for fish production I have seen. Ice fishing sees panfish slipping right up to a bait almost touching it with their nose and studying the bait. Two things will determine if they'll hit: the very minute quivering in the tail action and smell. The anise for some reason does not hustle fish in the other direction even when used on baits that get a wax worm or a spike added for some meat to temp the fish. I have seen garlic scented baits stop fish from hitting even with the live bait added. As soon as the garlic is gone, the fish will begin to hit again. Not so with the anise.