Building a castle model out of cardboard and paper can be lots of fun for every age. Castles can have walls, towers and torrents to give it a medieval feel. When constructing the castle's elements be careful how much glue you use. The more spread out the glue the better. For first projects, keep the design elements simple. Once the design elements of the castle are assembled, painting the castle will give it a personalised finishing touch. If you are colouring the castle with crayons, do this before assembling. If you are painting the castle, it is better to wait till the castle is completely assembled.
Cut out a piece of a cardboard box to an 8 1/2-by-11-inch size. This will be the base for the castle.
Design the castle's major elements. Four turrets, one in each corner of the base, let you connect them with castle walls or place other design elements such as a tower or gatehouse between the turrets. Castles are best if the inside is designed as a courtyard.
Build each element. Turrets are made using a toilet paper roll with a cone shaped paper roof glued to the top. Walls are made by drawing them onto paper, gluing them onto cardboard and cutting them out. Towers are made by drawing all four sides so that they connect onto paper, gluing them on cardboard, cutting them out, and folding along the tower's vertical corners. They should be glued to the walls.
Glue the design elements to the cardboard base, starting in one corner and working along each side.
Colour your castle with paint or watercolour.
Go sparingly on the glue. Use as much as need to hold the pieces together, but too much glue will wrinkle the paper. Let the glue dry before painting or excessive handling. Do not let the glue sit in big globs when gluing paper to cardboard. Always spread it out with a cotton swab.