Today's still life subject is stress patterns, which show up in clear plastic items when sandwiched between two polarisers. I use a small lightbox with a piece of polarising film over the top, place the item on top and then fit a polariser to the camera lens.
My initial subjects were my trusty maths set, ruler, protractor and a couple of triangles. Then last night I rummaged through the cupboard looking for disposable tableware. Had hoped the cutlery I had was clear plastic, but sadly it was white, but I did find some bowls and wine glasses.
This is one of the bowls - awesome, a really funky shape to begin with and lots of colourful patterns showed up in it. The wine glass was less successful, too tall really to be useful. Also tried a carpet protector cup with some lovely nobbles on it and a clear case which holds a charity coin. Both of which produced some interesting photos.
All in all it's whiled away some of the day, both in shooting the images first and post editing.