Tracing wheel
I think I need to dig through my old stuff to find my pattern tracing wheel. You know that little one with the teeth that worked with tracing paper to do patterns for clothing? I just watched a paper piecing video on YouTube where she uses it by putting her rotary ruler on the lines for a paper piecing paper pattern and then goes down all the lines before sewing. It helps to accurately fold the pattern to make sure the fabric is placed correctly and for easier paper removal after sewing. Now I just need to find mine!