Bring water and rice to a boil in a medium saucepan. Cover, reduce heat, and simmer 15 minutes or until water is almost absorbed. Remove from heat; let stand, covered, 15 minutes.
Place rice in a large bowl. Add sugar, coconut milk, and salt, stirring gently until well combined. Cover and let stand 20 minutes.
Lightly coat hands with cooking spray. Divide rice mixture into 20 equal portions, shaping each into a ball (about 1 rounded tablespoon each). Lightly press each rice ball into an oval between palms; place ovals on a baking sheet lined with wax paper. Top each of 10 ovals with 1 orange section, and press gently to adhere. Top each of the remaining 10 ovals with 2 raspberries. Cover and chill frushi until ready to serve. Serve with yogurt for dipping.