I recently did a BUNCH of white chocolate baby bottles for a shower and what I did was melt a bit of white chocolate and added a touch of pink to make the band at the top and then I painted it in the mold first, cooled it. then I topped it with the white chocolate.
And honestly, the BEST way I've found to melt chocolate is to get a small heavy saucepan, put your chips in there and put directly over the heat (I know, I know...not supposed to do that) but I take a wooden spoon and start stirring like crazy the minute the chips hit the pan. Then I keep stirring until they're melted...which is hardly anytime at all. I use a medium heat and keep the handle of the saucepan in my other hand while I'm stirring in case I need to lift it off the direct heat for a second or two while they melt. I can't tell you how much easier this is. I've done the double boiler method, I tried the microwave, but they kept seizing in there no matter how little time I put on the timer.
This kind of chocolate will not go into a bottle well...and honestly you probably don't need to. I spread my chocolate into the molds to the top and then got my small offset spatula and wiped the top of the mold with the edge to clear off the excess. Then put the excess back in the saucepan. Easy peasy!
A closed mouth gathers no feet.
A closed mouth gathers no feet.