Here is the answer to what I am doing with the butterflies,
These flat shuttles are made by sandwiching the butterflies between clear plastics. First, I printed shuttle shapes on a piece of paper. One page of A4 gives me 14 shuttles. Then, I place the shuttle template under a clear plastic and glue a butterfly at the centre of each shuttle shape. Using spray glue, I glued two clear plastic together with the butterflies in between.
The shuttles worked fine, though it slowed me down a bit.
My next post will be about the workshop.