Just do it the original way, which is much easier and better tasting IMO. Bake a cake from a mix in a 13x9 pan, use a fork to mix the baked cake with 1/2 -3/4 of a can of frosting and roll that into balls, which you then put lollipop sticks in and freeze, then dip in chocolate or candy coating and decorate. These are as moist and light as you want them to be - if you prefer a lighter taste, go with a very bland frosting and don't use a lot of it.
Bakerella.com has the best information, from the basic process to fun decorating ideas. She is the one who published a whole cake pop cookbook and basically invented these (or made them really popular if she didn't literally invent them).
Be aware that these are time consuming no matter what technique you use. Personally I think the ones that are baked in a gimmicky mold are dry and inferior to the originals, but if that's your preference, still check out bakerella.com for all of the best decorating tips.