Name: Poison Ivy
Designer: Valentina Minayeva
Units: 30
Paper: 7.5*6.5 cm (2:√3)
Final height: ~ 10 cm
Joint: no glue
Tutorial
Name: Cristallina
Designer: Andrey Hechuev
Units: 30
Paper: 7.5*7.5 cm
Final height: ~ 9 cm
Joint: no glue
Tutorial
Name: Rotari Star
Designer: Usman Rosyidhi
Units: 6
Paper: 5*5 cm
Final size: ~ 8 cm
Joint: no glue
Diagram: 10th Korea Origami Convention book