You do not need any crochet experience. Many of the pieces can be made by repeating a very simple crochet stitch. At the meetings that have been held so far, several people have been taught to crochet, and left the meeting with yarn and a new hobby! If you do crochet, the variety of coral-like shapes that can be created may be inspirational.
For the last 10 years, Grant has conducted workshops in teaching science in the schools, mainly at the elementary level.