My friend and I used to collect up the dried grass cuttings from the public verge outside the houses on our street, build it into what looked like a bloody ostrich nest, and pretend to be Mummy birds sitting warming their eggs. Bloody weirdo's we were!
It only stopped when I sat down in my nest one day, and got a shard of glass embedded in my knee.
I used to eat dried spaghetti, but only in geography lessons, until the start of year 9, when I moved to a new school that combined Geography with History and RE and called it Humanities. It tasted wrong in any other lesson.
I used to discard the crusts of my bread, and pick off bits of bread, and squash them till they were flat before eating them. I still do that now, when I have been ill...
I also used to mix squash with milk. Cheap, Happy Shopper blackcurrant squash. With milk. Yet when my DC's went through a phase of doing the exact same thing, it turned my stomach.
I used to have fountain pen eating contests with my classmates (we were made to write in proper fountain pens at both Primary and Secondary). The first to eat down to the cartridge would win. There were 4/5 of us that used to do it. Right up to about age 13. And yes, we WERE actually eating the plastic fountain pens.
(No, I'm not really here, I'm just a figment of your feverish flashbacks...)