Review on Unlock Your Mind with ROKR Puzzle Mechanical Model Self Kits: Explore the Best Brain Toys and Puzzles by Nick Childs

I have built several kits of this type and I have enjoyed them all - some more than others. For me, building this small motor was just as enjoyable as a similar but larger version made by others. I like painting the wheels red while the parts are still on their boards. I just carefully mask the surrounding areas and spray paint both sides of those parts on the board. I find the red contrast appealing. There is a lot of detail, but it wasn't difficult to collect. The tweezers help. I believe some parts have duplicates in case you break a part. I use super glue to hold most of the parts in place as the small engine and tender will sit on the shelf for years. The pieces fit together nicely - the glue is just an extra security measure. Fun little party projects.