For those that happen not to know -- blind squonking is when you sqeeze the bottle while tooting on your carto/atty without firing. It pulls juice into the atomizer. When you hear slight gurgle, it's enough. Stock VMod doesn't do it -- you have to tip it, but then you end up with a mouthfull of juice.
Get a silicone tube (or straw) and the bottom metal piece from a replaceable clearo head, like Vivi Nova. It kind of looks like a bolt without threads with a hole through the center. Put the metal piece into the tube.

Pull the silicone cap that seals the bottle to the VMod out of the mod, and stick it onto your contraption, like so:

Gently stick all that back into the VMod using paper clip or toothpick. Make sure not to pierce the silicone cap, and make sure it's stuck all the way down.

Now you can keep your vmod vertical while squonking. If you feel brave, you can crazy glue the tube to the silicone cap, but it doesn't leak even without glue, and it's easier to wash if it's not glued.
Get a silicone tube (or straw) and the bottom metal piece from a replaceable clearo head, like Vivi Nova. It kind of looks like a bolt without threads with a hole through the center. Put the metal piece into the tube.

Pull the silicone cap that seals the bottle to the VMod out of the mod, and stick it onto your contraption, like so:

Gently stick all that back into the VMod using paper clip or toothpick. Make sure not to pierce the silicone cap, and make sure it's stuck all the way down.

Now you can keep your vmod vertical while squonking. If you feel brave, you can crazy glue the tube to the silicone cap, but it doesn't leak even without glue, and it's easier to wash if it's not glued.