3D Paper Mobile Planets Craft Template - Solar System This 3D Paper Mobile Planets Craft is great for kids and grown ups! Kids will love exploring our solar system by making this crafts and you can use the template to make a fun mobile for the baby room, your classroom or any other room. *this post contains affiliate links* Kids love learning about the solar  Paper Planets | Solar System Scope Easy : 15 Faces Paper Model. Also called the Icosahedron, this basic paper model is the easiest to assemble, but still requires a lot of skill ! It to should take about 30 min to make.