Need ideas for box for transporting a flat/long corpse in a van for the murderer?
In my mystery, the murderer is transporting a corpse in a car/van. I need:
the body to not be squished into a box or luggage case, so it has to be a long box/bag
it'll be a van with the back seats pushed down into the van to make space. Ideally the person riding next to murderer in the passenger seat cannot look back and see it OR can see it but thinks it is a common box
the box/luggage case/bag has to also be a not-abnormal thing. It should be something that if he were stopped by a police officer/asked by the passenger, he could just say "Oh I'm just transporting X item in its packaging"
So I wanted ideas for X. Is there any typically large things that vans are used to move? It also doesn't have to be a van but could be a pickup truck, SUV, etc. I just needed ideas.
Thanks!