Carriage wheel restoration took 4 bic pens (lengthwise cut with dissection scissors), crazy glue for the stress cracked wheels, and hot glue to reinforce. The wheel frame had to be stabilized because it was creeping inward on the axis. That's what caused the wheel stress. The wheels and the hub are one piece so that was all cracked up. We'll have to be careful with it, but I think it should be good for dollie transport again.