I assume if you are mentioning partially used vials, you have a pump.
If so, remember to not let the pump be x-rayed. It cannot go on the belt and cannot go in the human-sized box that you hold your hands up whilst you are x-rayed. It can go with you through the arch and if you remember to take off any clip, it should not set off the alarm.
Some pump suppliers (e.g. Animas) can provide a spare pump in case you need it whilst you are away. It is worth asking. Otherwise, make sure you have an alternative in case your pump has a problem.
If you use pens, I also advise taking an alternative (such as spare pens).
Have an amazing honeymoon.