The Odd Parts Secretary’s Challenge
This Challenge was one from Peter Clay. It was to build a model with any number of parts, but there’s a catch — members had to use an odd number of any part that they used; even numbers of parts weren’t accepted! Mutilating parts to get around the rules wasn’t in the spirit of the Challenge either; nor was doubling up on one side of a model, e.g. using four of part 2 (5½” strip) for a tower couldn’t be made legal by adding an extra strip to one leg.