Fronderful.....

These are a particularly rare tree fungi, found only on the 2nd sycamore from the left, in Bruntsfied Links. They have many interesting properties - if infused with Irn Bru, they can cure everything, from Bishop's Finger, to Septic Hyponchondria (and plooks!).......

Or, it's a bronchial tumour which I keep in the fridge at work, just waiting to be dissected, catalogued, and then pan fried with a wee bit of garlic....

Or, it's a sculpture of sea fronds, by a Danish artist called Lotte Glob.....

You decide. They all sound highly unlikely to me.......