Both dad and kids can spend time together building a variety of animals and architectural sites from around the world. Since many of the nanoblock sets represent well-know buildings, dads who enjoy architecture will enjoy the process and teaching kids about the original buildings. We also like the "nano-sized" price point that makes these easily a tenth the cost of the architecture collection of the major competitor.

The one caveat is that these blocks truly are "nano" in size compared to the common Lego-style blocks. Nanoblocks require good eyesite and nimble fingers to control, but they are a good exercise of attention to detail and fine motor skills. They make a fun project for dads and kids to do together.