Go to Academy buy their lure knocker for $5 and add your own chains to it with #8 split rings and small chain you can buyat home depot. You'll have about $6-7 in it and they work pretty good.
Bass Pro sells the same thing with the chains for around $14
This is what I did except I haven't added the chains, the chains I bought weren't welded shut so they kept getting tangled around my line and it was more trouble than its worth.
I also took an old rod and cut it off right in front of the fore grip and put an old ABU Garcia 5000 to make it easier to pull the line in and store.