No scissors needed, or glue, or paper-clip or....well any other type of fastener because the interlocking folds do job perfectly. Great ornamental pieces that can be hung up or turned into a lamp, try using different colours, sizes and patterns.
Paper squares (30)
~1.5-3hours depending on size.
Btw sorry for the terrible resolution pictures, I dropped my camera in a peat bog so I had to use my phone instead.