We have had a mini-trampoline for a long time. The older children wore out the elastic cord that laces around the bed of the trampoline, so for a year or so the trampoline was out of commission. Eventually Kara ordered new cord and then a long while later Opa and I strung it on the bed. That was a few months ago. They younger boys had a great time playing with it and then we stashed it in the storage area. They recently asked for it and so it came out again.
The older children are not supposed to use it. Kara thinks they will destroy the new cord. I think they would fly off the trampoline, so I'm in agreement with her that they must not use it.