Just to avoid confusion, it's called a collapsable spit (crafted by gnome tinkers.) They're usually available in the bazaar.
There are 2 really lovelys thing about these collapsable tradeskill containers.
You can store them in another container
No more waiting in line to get to that PoP oven
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"God created man from a handful of dust, and he created woman from that man's rib. And these two together were so stupid that they weren't on the planet five minutes when they managed to get a curse put on all future generations. Nice work." Pat Condell