Hi everyone: Okay, I am thinking well in advance of needing this, but since hubby will be retiring soon it would make a great "Honey To Do" item. I am looking for ideas or place to go to get a pattern to make a training cart out of PVC and wheels. Missy our new buckskin mini is coming along in her training and I would eventually would like to introduce her to the idea of having something behind her when she walks besides me. Any thoughts?