I came across an article on these devices some time ago, and when I started to seriously prepare for the worst, they were an item I wanted to have on hand. Below is a general write up on their use, a review on their use, and a couple of links to sources. Yo-Yo Fishing "Yo-yoing" is a high-tech method of limblining. A yo-yo is an automatic reel consisting of a stainless-steel spring encased in a sheet-metal disk (about the diameter of a doughnut). This device has a line attached to its topside for tying to a springy green limb, which suspends the yo-yo reel above the water's surface. Inside the yo-yo mechanism are several feet of strong nylon line wrapped around the spring. The end of this line dangles from the bottom of the yo-yo. A snap swivel is tied to the end. A 1/0 to 3/0 hook (attached to the line via the snap swivel) and one or two split-shot weights complete the rig. After the yo-yo is tied to a limb, the hook is baited and enough line is pulled off the reel to lower the bait two or three feet beneath the surface. As the line is pulled off the reel, the spring coils tighter. Once the desired length is extended, a small wire trigger on the side of the reel is set to keep the line in place. When a fish takes the bait it trips the trigger and the reel uncoils quickly to set the hook. The best strategy for yo-yos is to scatter two dozen or more along a tree- or brush-lined river or lakeshore. Set the devices at dusk, then run them periodically through the night or at first light in the morning. As is the case with limblines, yo-yos can be rigged with monofilament leaders and smaller hooks to catch bluegills and crappies-but be sure that it is a legal fishing method for those species in the state in which you fish. Bait with wigglers, catalpa worms or crickets fobluegills, and small live minnows for crappies. Contact: Mechanical Fisher Yo-Yo Company (870-422-7715; www. rocking.altd.com/mfish.html). http://rockingaltd.com/mfish.html I ordered up a dozen of these things, having seen them before at Reelfoot lake. I took them with me on a fishing trip to Patoka lake, here in Indiana. Man, do these things work! The group I went with always has a fish fry on the last night of the trip. Depending on how well we do, but last year we had to go out to eat. This time, just as an insurance measure, I set out 10 of these (state limit). Each of them secured to a limb having a 3/0 circle hook installed. The bait used was either small bluegill or a few minnows. Since I was running the beer boat doing laps around the lake, I would check my "traps" to see if it worked. I got nine decent channel cats and a bass on the first circuit of bait! I did find one missing on morning two, but the whole limb was gone! I would liked to have seen whatever took that one! http://www.survival-gear.com/yo-yo-fishingreel.htm $3.25 each or $3 in quantity http://www.cheaperthandirt.com/ZWN272-1.html $29.97 for a dozen. They are also available at Cabelas and on ebay. It is my intent to obtain at least 2 dozen for my preps. These items are legal for use immediately in some states, and illegal in others. Check your local fish and game laws.