Boozy pops (or paletas borrachitas, as I like to call them) are some of my favorite ones to make—especially ones that have lots of chunks in them. You can't put much alcohol in them, because they won't freeze; but you can still taste the wine or liquor, and that makes a very tasty paleta.
There are tons of different sangria recipes out there, and you should feel free to play with this recipe and make it your own. I love mango, so I add it to the fruit mix, but you might prefer strawberries or oranges. Just use this method as a guide to have fun with them!