Frozen Fruit Cups

1-15 oz can pear slices in juice
1-15 oz can peach slices in juice
1-20 oz can pineapple tidbits in juice
Your choice of other fruits (sliced fresh or frozen strawberries, sliced bananas, blueberries, etc.
Lemon-lime soda

Mix fruits and juice. Cut pear and peach slices into smaller pieces if you like. Add lemon-lime soda to make juice. Ladle mixture into 8-9-ounce plastic cups. Add more lemon-lime soda to mixture if more juice is needed. Fill cups to about 1/2 inch from top. Cover the top of each cup with foil or plastic wrap. Place cups in a muffin tin to hold and place in freezer. Freeze until firm. To eat, leave at room temperature until softened or microwave a few seconds until softened and slushy.