Rollback Trailer?

Anyone know of a place that rents rollback trailers, preferrably north of Denver? I'm trying to move a 8x16 shed and I believe this trailer is what I need. My search for rental companies for these things have come up blank, so I thought I'd see if anyone here could point me in the right direction.

Thanks much.
[Beer]

try walmart. I know they rollback their prices, so they might have some rollback trailers