I'd like to make an outdoor type of cake with a little pond in it, sort of like the cake in the photo below... but how do I do it? I see there is some white mixed in with the blue... do I just "smear" them together or?

OR could I just frost the little pond blue then add blue colored piping gel instead? Do you think that would look okay with this kind of cake?

Also, does anyone know of any stores/websites that sell cake sets? I'm looking for outdoor/trees/animals/fences/toy trucks & tractor sets.

...........do I just "smear" them together...........
............could I just frost the little pond blue then add blue colored piping gel instead?...........

You can do it either way Just be aware piping gel takes color sooooooo well that just a tiny tiny dab will color up to 1/2C of the stuff! You probably will only need less than a Tablespoon which I think you will not even need to color if it is put over blue icing.

The decorating sets are by Decopac. Google them for internet retailers.