From paper and cardboard

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  100% DIY jet boat

  I thought for a long time to print the case on a 3D printer or to do it manually. It’s easier to print, but I decided to do the first boat with my own hands. I used cardboard as the main material.
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  4 origami paper BALLs

  It is difficult to make a ball of paper, but making a ball in origami technique is very easy. Just take the colored paper and follow the tutorial video.
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  Three origami-cube made of paper

  You can make from paper not only cubes, but also build from several cubes of the house, bridges, robots - everything that your imagination is capable of.
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  Origami dodecahedron of paper

  A smart idea for teachers to create with children in the classroom work, geometry or drawing at school! For the production of 30 modules of a dodecahedron, you will need paper 8 * 8 cm.
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  Toy with balls, made of cardboard (Marble machine)

  This toy is also called "elevator for balls". Marble machine made of cardboard.
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  Paper heart

  A beautiful, voluminous heart of paper can be glued together in a couple of hours.