Iris started a new TIAS! Without any diagram or photo, Day 1 is truely tat it and see what comes out of it! Am I on the right track?
Also in the photo is one of my favourite picot gauges - a sewing gauge. They come in hard plastic and metal, I like them thin, handy, durable and fuss-free, and many sizes all in one and all the arms are annotated. I counted 20 picot sizes from the smallest 1/8" to the largest 4"!
Did you notice the transparent disc at the top left corner ? I made this flat shuttle from shrink plastic back in 2005. It's not easy to shrink a long piece down nicely and flatly, or perhaps I'm too much of a perfectionest or simply I'm not skillful enough. But well, this is the one and only one I tried, and have since only used it once to tat something very small.