Like you, I've been saving turned shavings, curlies and sawdust in
ZipLok bags. It's amazing how many colors there are in woods.

I've got a different use for them in mind - a tongue in cheek poke
at one of the Art Speak terms used to describe a piece. What used
to be called holes became "negative space" and in one description
of a piece, "the presence of abscence".

I want to do a piece that's made from the "abscence" titled
The Abscence of the Presence of Absence/ I'm thinking of
a simple, plane would plate - with small piles of different colored
wood shaving and sawdust - artfully arranged - and nicely
juxtaposed of course. And it will be an Interactive Transient Piece
- a sneeze or cough easily changing The Work. The title of course
will ultimately change to The Answer My Friend, Is Blowing In The
Wind.

Great Wild Hare Idea you've come up with. Beats Black Gesso.