There is nothing you can do if the tip is broken clean off. Just fit another guide to the tip and fish on.

Cracks and splits can be fixed by wrapping white silk thread over the damage then varnish over it. The white silk will become clear once the varnish soaks in giving a near invisible wrap.

You might ruin the value if you try to repair it.

I have an old bamboo flyrod that was my grandfathers and needs repair, I talked to some refurbishing shops and if it is sentimental and you want to keep it and/or use it there are some good ones out there, but you are looking at upwards of $180.

Here's the deal on bamboo. During the war our battle ships brought back bamboo from oversees, and left the vehicle/equipment there. There were tons of cheap bamboo that rods were made from before fiberglass rods were invented. An old bamboo rod could be worth a quarter (.25cents) at a garage sale !! I've seen bins of old bamboo rods I wouldn't give a dime for. Then there are famous brand makers like Orvis, Payne, Thomas and Thomas, Hardy etc. who only chose the best of bamboo, and excellent workmanship. Hogie Carmichael, the composer of Star Dust, his son made expensive bamboo rods. They often came with cases. It's like saying, "I have a chance to buy a Rolls Royce, and I also have a chance to buy a broken down skateboard.

The question is not a question of value. It is a question of how to fix it. Buck has the solution. +1 to Buck.

I've used those kits from Kmart and walmart to fix graphite poles with. Some come with shrink tubing and they work great. On a bamboo rod, you could tie a saftey pin on the end of the pole upside down so that the fly line runs through the little hole at the end. After you tie it neatly, I would use a whip finish knot and head cement. After it all dries cover with thin layer of laquer.

i'm not sure about bamboo, but they do have repair kits for broken rods that are broken past the first guide for graphite and fiberglass rods. I would say unless it has any sentimental value (which i'm assuming in this case it isn't), then its not worth it to try to repair. If you can add a guide to the tip and it still cast fine then it could be a good deal, but bamboo rods are very common, and are pretty cheap, so I wouldn't suggest buying one in poor condition.