Place all the ingredients in a blender and blend for 10 seconds until smooth (don't blend too long). If you want larger flecks of zest in the popsicles, add it after blending the mixture and pulse 1-2 times. You can also whisk the mixture instead of blending. Try to use something with a pour spout to easily transfer to molds.
Pour the mixture into a 6-Piece Popsicle Mold, leaving about ¼" of room on top. Place stick in the mixture and place in freezer for 4-6 hours.
The lime flavor and sweetness can easily be adjusted - just add more or less according to your taste. Most of the zest tends to sink to the bottom of the popsicles, but it's actually really delicious! The first bite is creamy, sweet and zesty! If you don't think you'll like that, you can omit the zest and add a little more lime juice to the mixture. You can also add the zest after freezing. * I added more zest to the frozen pops in these photos. Add-in ideas: