Got a “Whatchamacallit”... ?

Got a “Whatchamacallit”... ? {CLICK HERE}

n. Got a GROCERY something-or-other you can describe, but you don't know what it's called? This is the place! Leave a COMMENT telling us what it looks like, where you find it, how it's used, etc., and maybe someone else knows the proper term and can likewise leave the answer. Thanks in advance!