Most rabbits do not like being held, but they can get used to it. Frequent handling is the best way, starting when they are very small (I prefer to start even before their eyes open). Obviously, you can't turn back the clock on these two, so they probably won't ever be cuddly, but they can be better. Hazel's standoffishness has nothing to do with the fact that he has not been neutered - I don't neuter any of my rabbits (I am a breeder) and several of my bucks have been major love bugs. A certain amount of personality seems to be inherited - my friendliest rabbits tend to have outgoing offspring, and my "touchy" rabbits often have babies that grow up to be a bit cranky, too. Since a lot of my rabbits get sold as pets, really cranky rabbits do not get bred - I have seen truly vicious rabbits, and I wouldn't want to do that to anyone, especially not a child!
The first thing to do is keep them in a cage that is small enough that you can reach all parts of it easily. You do not want to chase a rabbit around in its cage when trying to interact with it - that just makes it more skittish. It would be best if this cage is in a place where there is only limited view - the great outdoors may seem a relief to us, but a rabbit feels exposed when out in the open.
Speak softly and move slowly around the rabbit. You need to be calm to keep the animal calm. Rabbits are small herbivores, and when you are a small herbivore, everything eats you! They need a calm and quiet environment to feel safe.
Feed the rabbit treats by hand. Things like a small piece of apple or banana, a few dandelion leaves (make sure they haven't been sprayed with weed killer, of course) the list is long, but there is bound to be something that your rabbit will find irresistible. You want the rabbit to associate you with good things.
When you go to pet the rabbit, put your hand close to the rabbit, and wait until it "hunkers down" before petting it. Stroke the head, scritch the cheeks, run your hand down the body. You need to do this several times a day, even if you don't pick the rabbit up. Being picked up is scary to a rabbit, at least at first.
When you pick them up, keep their weight supported at all times. Turning a rabbit over on its back, feet side up, has a calming effect on most rabbits. If you can do it in your arms, great, but you may find it easier to sit down and put the rabbit in your lap that way. Stroke the head and ears - most rabbits go into a trance-like state when treated like this. When you go to put the rabbit back in its cage, you can carry it there cradled like a baby. With a little practice, you can learn to turn the rabbit out of your arms and onto its feet on the cage floor in one smooth movement - before the rabbit even starts to struggle, it is back in the cage. A lot of rabbits get really wiggly when they see the cage; carrying them facing away from the cage or even tucking the head under your elbow so they can't see it can help to keep them calm and keep you from getting scratched up.
Good luck!
