" Making a Geodesic Dome."
When making a geodesic
dome you will need plenty of drinking straws and for the
connections any of the following can be used.
Glue.
Glue the two straws together, this way the joints will be rigid.
Pipe cleaners or wire.
The pipe cleaner is fixed into either end of each straw. This type of joint is reasonably rigid as is the plasticine or clay method.
Plasticine or clay.
Use a small ball of plasticine and fix the straws into it.
A pin.
The pin method as the name suggests is where the the two straws are joined together with a pin, this allows movement of the joint. This type of joint is called a pin-joint.
Try each method and see which one is most successful.