http://www.durabiltindustries.com/tumblebug.aspx?im=tumblebug.jpg
These are common with the Amish around here. There are also versions that use a spike and a boat winch, but they are slower. They can be used with a decent sized 4 wheeler, too.
I need something, too. I have a tractor and small pickup, but neither are big enough to move a round bale by themselves.
I have rolled them by hand--but it is not easy, especially uphill.
I have also used a rock bar or pipe stuck through the middle and then a loop of rope or chain hooked around a ball hitch on a car.
But that doesn't work to transport a bale that is rotted. Great for spreading the mulch, though!
"You must be the change you want to see in the world." "First they ignore you, then they laugh at you, then they fight you, then you win." --Mahatma Gandhi
"Preach the Gospel always, and if necessary, use words." --Francis of Assisi.
"Family farms work when the whole family works the farm." -- Adam Klaus