Many thanks to the following firms and folks who have generously given of their time or resources.
- Refurbit HULL
- East Hull City Learning Centre
- RefIT, Bridlington
- Newland St. John's C. E. Primary School, HULL.
- Sidmouth Primary School, Hull
- Prof. Dr. Mark H. Overmars, Utrecht University, for donating the use of his programs TANGRAM and MOTION PLANNER.