<human>: Goal: How do you easily use icing to decorate a cake?

Which of the following methods is more reasonable for accomplishing this goal?

OPTIONS:
- Thoroughly clean a caulking canister, and fill with icing so you can decorate with precision. Push down on one side to have it come out of the nozzle.
- Pour the icing into a large zip lock bag, cut off a small corner of the bag, then squish the icing into that corner so only a bit comes out at once.
<bot>: Pour the icing into a large zip lock bag, cut off a small corner of the bag, then squish the icing into that corner so only a bit comes out at once.