I know this is an old thread but this reminds me of when I had to do this on a 40 year old Gibson I was restoring and they didn't want to come out. Thought I'd post here in case it's useful for anyone.

The trick I found was to get a longish bolt with the correct thread, about twice the length of the bush or so, and a bit of tube that's about the same length as the bush - metal or hard plastic, as long as it's strong. Also need a washer or two that's bigger than the diameter of the tubing. Ensure that the length of the bolt protruding from the bottom of the tube is less than the depth of the hole. One more thing would be something to place between the tube and the body to prevent damage, like a rubber or felt bush/washer - enough thickness to provide protection.

So, bolt goes through washer and through tube. Place this carefully over the rubber/felt and guide the bolt into the bush. Slowly screw the bolt into bush. Once you reach the point where the head of the bolt reaches the washers, keep screwing slowly and this will then start pulling the bush out of the hole. I found this is a much less brutal way than prying it out with a tool.

I hope I've explained this well. Maybe a diagram would be helpful?