Leaf Tally Fish, a new addition to the Adventurous Aquarium. Print out at A4. Add pairs for the fins and for the inside edge passives of the tail. I use mostly Egyptian cotton, machine quilting thread in a variety of colours. They measure about 27 to 30 wraps per centimeter.
The leaf tallies can be replaced with a standard crossing of plaits, or make a small half stitch or cloth stitch bud (circle) in the middle where the threads would normally cross. This is a good way to make patterns where the amount of leaf tallies puts you off, the 'bud' works with pairs or plaits entering it. You can see how this works in the little fish I made to use up some thread ends.
Video on how to measure wraps per centimeter and my other video tutorials here... https://www.youtube.com/@LesleysLace/