Take the 8 skewers bamboo and cut their sharp end.
Step 2: Building the base
take 4 skewers and put them like a square.
Connect their corner using rubber bands - one for each corner.
Step 3: Building the walls
connect one more skewer for each corner, using 4 more rubber bands. it's important to connect the skewers from the inside of the square.
Step 4: Finishing the pyramid
Take the last rubber band and with it connect the 4 standing skewers. It needs to look like in the picture.
If you want to make the pyramid look more solid, you can attach papers to the walls of the the pyramid.