My girlfriend and I have bought Zoku pops for each others kids for Xmas. We bought the single ones because it's a better deal than buying a triple. You get one tool for each and more sticks. We also ordered the chocolate stations. Should keep the kids busy over the holidays.
That's a good idea Debbie. You might also find that they freeze more quickly or that you can freeze more in between freezes if that makes sense. With the three pop maker, you can make up to 9 pops before having to put it back in the freezer (so with each single you could make 3 -or maybe more?- pops before putting it in the freezer). I've not had much success with multiple pops (because I usually choose milk based ones), but apparently water/juice ones work well with multiple uses.