My Leggo colour was yellow. It stopped fights. My sister had little interest in Meccano though, so that was shared between two. We had a lot of it, much the early thicker gauge stuff from Grandfolks and family, as we were the only boys in the generation, other than Cousin Andrew (His father was the one who had a Jarc in Banstead) who was older and a bit of a genius, already making computers out of scrap bits etc at 12 in 1970. His uncle Dick was employed as an inventor by Marconi. Probably the source of parts. Clever family. It was expected that boys made stuff in our family.