Recipe for these ones:
- take your case with felt-tips
- take (without thinking) one felt-tip in whatever colour
- draw a little line, dot or scribble
- leave the felt-tip on the table
- take another felt-tip from the case
- add a line, dot or scribble to the first one
- take another felt-tip
- add a line, dot or scribble
- and so on, untill your case is empty
And then….