I found these popsicles over at Martha Stewart's website. They looked so cute and easy to make that I decided to make some the next day. It just so happened that I had some leftover orange juice and a big watermelon so I decided to do halfsies - half orange juice, half watermelon juice. I just blended the watermelon with a little bit of water and simple syrup (sugar + water). My sunshine pops came out delicious!
Another recipe you can try is by mixing some plain yoghurt with some berries (I bought some great organic berries - blueberries, strawberries, blackberries and raspberries - for really cheap over at the supermarket in Citos). Add a little simple syrup so it's not too sour and voila, you have yoghurt popsicles!