Set 12 3 oz disposable cups in a small pan or tray.
Put pineapple with pineapple juice in blender and pulse until nearly liquid.
Pour into cups filling between 1/2 and 2/3 full.
Place in freezer for 30-45 minutes.
Insert wooden sticks in partially frozen pineapple and return to freezer for 1-2 hours.
Fill remainder of cup with orange juice and return to freezer for 1-2 hours or frozen.