I hadn't come across any 5-sided modular boxes until recently. Modular pentagonal boxes are not very common and one of the first pentagonal box I came across was Dennis Walker's Cherry Blossom Box.

A very pretty box to fold, it ends up with a star shape in the top and 5 petals on top of the star. It folds best with 80 gsm paper. I had this beautiful gift wrapper paper which worked out very well.

Model Details:

Model: Cherry Blossom Box

Creator: Dennis Walker

Difficulty Level: High Intermediate

Paper Ratio: Square

Paper Size: 4 inches

Instructions: Lid, Base

Number of Modules: 10 (5 for lid and 5 for base)

The Just Twist Twirls are these beautiful modular flowers created by Krystyna Burczyk. These twirly creations, when curled correctly and tightly, hold together very well and form quite sturdy structures.

This flower is made from 10 triangles cut out of a square on the diagonal. And there is absolutely no folding involved; only twirling :) The twirls come out much better when the paper is coated with a dab of water. The water helps the paper to bend much better and once it is dry, the shape is also held better.

Thick paper is recommended, since regular origami paper will not be sufficiently strong to hold the shape. I have used 120 gsm paper in 2 different colours and am very happy with the way these flowers turned out.

Model Details:

Model: Just Twist Flower 

Creator: Krystyna Burczyk

Difficulty Level: Low Intermediate

Paper Ratio: Triangle cut along the diagonal of a square

Paper Size: 3.5 inch squares

Modules: 10

Tutorial: Youtube