When I was a just a little tike, the cool thing to have was Tinker Toys. You could build all kinds of things from those thin wooden sticks and connectors. I was a little too early for the hi-tech version, Legos. Legos have come a long way since they came out and only available as basic building blocks.
These days, you can build cool things like a space shuttle or a castle with the shiny plastic blocks. Blocks and a whole lot more. Little people, vehicles and all kinds of add-ons to make your building experience a time to enjoy. And colors? Wow, just think of it and you can probably find it.