What you see here is a Greta Loom. It's a tinny weaving loom, you can hold between your legs, to make ribbons and all sorts of (narrow) trimmings. It's one of the many things I've learned when I took the classes Bonni Backe taught last summer, at IGMA's Guild school in Castine.
Today it's warped with with 6 strands of cotton sewing thread; orange, blue and white.

So i can now weave a ribbon that is approximately 1,3 millimeter wide. The aim here is to make an orange band, with a blue and white stripe. Unfortunately it would become to wide if i'd do that. Cos then I need an extra thread of blue, next to the other blue, and the same goes for the white thread, making it become way over 1,7 mm wide. I might even need an extra orange to set the stripes apart... making it almost 2 mm.......
It won't do... just won't do, so this band is a compromise between size and looks. It's width is now in proportion to the original and the human eye will hopefully presume that the blue and white "dots" are lines.
Cos this ribbon will be used to tie new pair(s) of old fashion Dutch skates. Just like has been done so oft in the past.
Have a great weekend,