I was trying to fold some Kusudama models in Origami and suddenly felt basemodel looks like the squarey kolam base structure. So took the picture of it. Folded another complicated octogonal design and that too was a good competitor..thus evolved origami rangolis....the base paper is just a single square piece, used my color printer as-usual 
The main credit goes to origami designer "Kasahara Kunihiko". More designs on the way.
