If you want protection Whether in the garden or Skatepark... Use these To save your... Ummm joints?

I sit beneath a smiling face, most often seen in a formal place.

In a collective, I'm bunnies under your bed, Everyone turns to me when they are dead, I'm dander, I'm fluff, I'm cells that are shed, If I'm not on your stuff I'm in a hoover instead

Oh dear lord I seem to have broken my gourd Whatever will I use to fix it?

What is cut on a table, but never eaten?